pgtoolkit/pgbrowser.py
author Radek Brich <radek.brich@devl.cz>
Tue, 26 Feb 2013 14:40:39 +0100
changeset 68 b0d972be2631
parent 59 65efd0c6919f
child 85 11a282e23e0d
permissions -rw-r--r--
Add listtables tool.
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# -*- coding: utf-8 -*-
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#
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# PgBrowser - browse database schema and metadata
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#
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# Some of the queries came from psql.
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#
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# Copyright (c) 2011  Radek Brich <radek.brich@devl.cz>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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from collections import OrderedDict
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class Column:
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    def __init__(self, browser, table,
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        name, type, notnull, hasdefault, default, description):
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        self.browser = browser  # Browser instance
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        self.table = table  # Table instance
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        self.name = name
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        self.type = type
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        self.notnull = notnull
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        self.hasdefault = hasdefault
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        self.default = default
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        self.description = description
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class Constraint:
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    def __init__(self, browser, table, name, type, fname, fschema, definition):
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        self.browser = browser
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        self.table = table
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        self.name = name
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        self.type = type
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        self.fname = fname  # foreign table name
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        self.fschema = fschema  # foreign table schema
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        self.definition = definition
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class Index:
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    def __init__(self, browser, table,
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        name, primary, unique, clustered, valid, definition):
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        self.browser = browser
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        self.table = table
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        self.name = name
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        self.primary = primary
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        self.unique = unique
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        self.clustered = clustered
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        self.valid = valid
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        self.definition = definition
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class Table:
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    def __init__(self, browser, schema, name, owner, size, description, options):
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        self._columns = None
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        self._constraints = None
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        self._indexes = None
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        self.browser = browser  # Browser instance
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        self.schema = schema  # Schema instance
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        self.name = name  # table name, str
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        self.owner = owner
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        self.size = size
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        self.description = description
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        self.options = options or []
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    def refresh(self):
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        self.refresh_columns()
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        self.refresh_constraints()
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        self.refresh_indexes()
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    def refresh_columns(self):
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        rows = self.browser.list_columns(self.name, self.schema.name)
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        self._columns = OrderedDict([(x['name'], Column(self.browser, self, **x)) for x in rows])
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    def refresh_constraints(self):
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        rows = self.browser.list_constraints(self.name, self.schema.name)
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        self._constraints = OrderedDict([(x['name'], Constraint(self.browser, self, **x)) for x in rows])
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    def refresh_indexes(self):
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        rows = self.browser.list_indexes(self.name, self.schema.name)
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        self._indexes = OrderedDict([(x['name'], Index(self.browser, self, **x)) for x in rows])
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    def getcolumns(self):
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        if self._columns is None:
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            self.refresh_columns()
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        return self._columns
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    columns = property(getcolumns)
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    def getconstraints(self):
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        if self._constraints is None:
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            self.refresh_constraints()
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        return self._constraints
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    constraints = property(getconstraints)
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    def getindexes(self):
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        if self._indexes is None:
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            self.refresh_indexes()
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        return self._indexes
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    indexes = property(getindexes)
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class Argument:
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    def __init__(self, browser, function, name, type, mode, default):
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        # PgBrowser instance
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        self.browser = browser
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        # Function instance
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        self.function = function
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        self.name = name
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        self.type = type
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        self.mode = mode
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        self.default = default
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class Function:
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    def __init__(self, browser, schema, oid, name, function_name, type, result, source):
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        self.browser = browser
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        self.schema = schema
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        self.oid = oid
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        #: unique name - function name + arg types
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        self.name = name
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        #: pure function name without args
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        self.function_name = function_name
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        self.type = type
58
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        self.result = result
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        self.source = source
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        self._arguments = None
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        self._definition = None
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   142
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    def refresh(self):
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        self.refresh_args()
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    def refresh_args(self):
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        rows = self.browser.list_function_args(self.oid)
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        self._arguments = OrderedDict([(x['name'], Argument(self.browser, self, **x)) for x in rows])
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    @property
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    def arguments(self):
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        if self._arguments is None:
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            self.refresh_args()
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        return self._arguments
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    @property
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    def definition(self):
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        """Get full function definition including CREATE command."""
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        if not self._definition:
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            self._definition = self.browser.get_function_definition(self.oid)
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        return self._definition
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0
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class Schema:
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    def __init__(self, browser, name, owner, acl, description, system):
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        self._tables = None
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        self._functions = None
0
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        self.browser = browser
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        self.name = name
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        self.owner = owner
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        self.acl = acl
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        self.description = description
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        self.system = system
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    def refresh(self):
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        self.refresh_tables()
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        self.refresh_functions()
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    def refresh_tables(self):
0
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        rows = self.browser.list_tables(self.name)
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        self._tables = OrderedDict([(x['name'], Table(self.browser, self, **x)) for x in rows])
0
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    def refresh_functions(self):
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        rows = self.browser.list_functions(self.name)
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        self._functions = OrderedDict([(x['name'], Function(self.browser, self, **x)) for x in rows])
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    @property
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    def tables(self):
0
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        if self._tables is None:
58
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            self.refresh_tables()
0
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        return self._tables
58
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    @property
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    def functions(self):
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   195
        if self._functions is None:
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   196
            self.refresh_functions()
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   197
        return self._functions
0
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class PgBrowser:
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    def __init__(self, conn=None):
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        self._schemas = None
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        self.conn = conn
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0
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    def setconn(self, conn=None):
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        self.conn = conn
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   207
0
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    def refresh(self):
58
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   209
        self.refresh_schemas()
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    def refresh_schemas(self):
0
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        rows = self.list_schemas()
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        self._schemas = OrderedDict([(x['name'], Schema(self, **x)) for x in rows])
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58
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   215
    @property
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   216
    def schemas(self):
0
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   217
        if self._schemas is None:
58
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   218
            self.refresh_schemas()
0
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        return self._schemas
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   220
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
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    def _query(self, query, args):
0
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        try:
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   223
            curs = self.conn.cursor()
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   224
            curs.execute(query, args)
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   225
            curs.connection.commit()
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   226
            rows = curs.fetchall()
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   227
            return [dict(zip([desc[0] for desc in curs.description], row)) for row in rows]
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   228
        finally:
eaae9539e910 Postgres tools.
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   229
            curs.close()
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   230
eaae9539e910 Postgres tools.
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   231
    def list_databases(self):
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   232
        return self._query('''
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   233
            SELECT
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   234
                d.datname as "name",
eaae9539e910 Postgres tools.
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   235
                pg_catalog.pg_get_userbyid(d.datdba) as "owner",
eaae9539e910 Postgres tools.
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   236
                pg_catalog.pg_encoding_to_char(d.encoding) as "encoding",
eaae9539e910 Postgres tools.
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diff changeset
   237
                d.datcollate as "collation",
eaae9539e910 Postgres tools.
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   238
                d.datctype as "ctype",
eaae9539e910 Postgres tools.
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   239
                d.datacl AS "acl",
eaae9539e910 Postgres tools.
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   240
                CASE WHEN pg_catalog.has_database_privilege(d.datname, 'CONNECT')
eaae9539e910 Postgres tools.
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   241
                    THEN pg_catalog.pg_database_size(d.datname)
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   242
                    ELSE -1 -- No access
eaae9539e910 Postgres tools.
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   243
                END as "size",
eaae9539e910 Postgres tools.
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   244
                t.spcname as "tablespace",
eaae9539e910 Postgres tools.
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   245
                pg_catalog.shobj_description(d.oid, 'pg_database') as "description"
eaae9539e910 Postgres tools.
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diff changeset
   246
            FROM pg_catalog.pg_database d
eaae9539e910 Postgres tools.
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diff changeset
   247
            JOIN pg_catalog.pg_tablespace t on d.dattablespace = t.oid
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   248
            ORDER BY 1;
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c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
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   249
            ''', [])
0
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diff changeset
   250
eaae9539e910 Postgres tools.
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   251
    def list_schemas(self):
eaae9539e910 Postgres tools.
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   252
        return self._query('''
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
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   253
            SELECT
eaae9539e910 Postgres tools.
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diff changeset
   254
                n.nspname AS "name",
eaae9539e910 Postgres tools.
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diff changeset
   255
                pg_catalog.pg_get_userbyid(n.nspowner) AS "owner",
eaae9539e910 Postgres tools.
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diff changeset
   256
                n.nspacl AS "acl",
eaae9539e910 Postgres tools.
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parents:
diff changeset
   257
                pg_catalog.obj_description(n.oid, 'pg_namespace') AS "description",
eaae9539e910 Postgres tools.
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parents:
diff changeset
   258
                CASE WHEN n.nspname IN ('information_schema', 'pg_catalog', 'pg_toast')
eaae9539e910 Postgres tools.
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   259
                    OR n.nspname ~ '^pg_temp_' OR n.nspname ~ '^pg_toast_temp_'
eaae9539e910 Postgres tools.
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   260
                    THEN TRUE
eaae9539e910 Postgres tools.
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parents:
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   261
                    ELSE FALSE
eaae9539e910 Postgres tools.
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parents:
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   262
                END AS "system"
eaae9539e910 Postgres tools.
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parents:
diff changeset
   263
            FROM pg_catalog.pg_namespace n
eaae9539e910 Postgres tools.
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diff changeset
   264
            ORDER BY 1;
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
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diff changeset
   265
            ''', [])
0
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diff changeset
   266
eaae9539e910 Postgres tools.
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   267
    def list_tables(self, schema='public'):
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   268
        return self._query('''
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   269
            SELECT
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   270
                c.relname as "name",
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   271
                pg_catalog.pg_get_userbyid(c.relowner) as "owner",
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   272
                pg_catalog.pg_relation_size(c.oid) as "size",
68
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diff changeset
   273
                pg_catalog.obj_description(c.oid, 'pg_class') as "description",
b0d972be2631 Add listtables tool.
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diff changeset
   274
                c.reloptions as "options"
0
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diff changeset
   275
            FROM pg_catalog.pg_class c
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   276
            LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
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diff changeset
   277
            WHERE n.nspname = %s AND c.relkind IN ('r','s','')
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   278
            ORDER BY 1;
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
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diff changeset
   279
            ''', [schema])
0
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   280
12
203be9022b46 Fix pgdatadiff.
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   281
    def list_columns(self, table, schema='public', order=2):
0
eaae9539e910 Postgres tools.
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   282
        return self._query('''
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   283
            SELECT
40
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
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diff changeset
   284
                --a.attrelid,
0
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   285
                a.attname as "name",
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   286
                format_type(a.atttypid, a.atttypmod) AS "type",
eaae9539e910 Postgres tools.
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   287
                a.attnotnull as "notnull",
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   288
                a.atthasdef as "hasdefault",
52
26121a8fe78b Update analyzeall tool: add REINDEX option. Add ibrowser tool (useful for PgBrowser testing). Fix PgBrowser.list_columns default value.
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parents: 40
diff changeset
   289
                pg_catalog.pg_get_expr(d.adbin, d.adrelid) as "default",
0
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   290
                pg_catalog.col_description(a.attrelid, a.attnum) AS "description"
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diff changeset
   291
            FROM pg_catalog.pg_attribute a
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   292
            LEFT JOIN pg_catalog.pg_class c ON a.attrelid = c.oid
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diff changeset
   293
            LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
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   294
            LEFT JOIN pg_catalog.pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum
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   295
            WHERE n.nspname = %s AND c.relname = %s AND a.attnum > 0 AND NOT a.attisdropped
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
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diff changeset
   296
            ORDER BY ''' + str(order), [schema, table])
0
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parents:
diff changeset
   297
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   298
    def list_constraints(self, table, schema='public'):
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diff changeset
   299
        return self._query('''
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   300
            SELECT
35
e7f79c4a27ce TableCopyTool: order tables with respect to references.
Radek Brich <radek.brich@devl.cz>
parents: 32
diff changeset
   301
                r.conname AS "name",
e7f79c4a27ce TableCopyTool: order tables with respect to references.
Radek Brich <radek.brich@devl.cz>
parents: 32
diff changeset
   302
                r.contype AS "type",
e7f79c4a27ce TableCopyTool: order tables with respect to references.
Radek Brich <radek.brich@devl.cz>
parents: 32
diff changeset
   303
                cf.relname AS "fname",
e7f79c4a27ce TableCopyTool: order tables with respect to references.
Radek Brich <radek.brich@devl.cz>
parents: 32
diff changeset
   304
                nf.nspname AS "fschema",
0
eaae9539e910 Postgres tools.
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diff changeset
   305
                pg_catalog.pg_get_constraintdef(r.oid, true) as "definition"
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
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diff changeset
   306
            FROM pg_catalog.pg_constraint r
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diff changeset
   307
            JOIN pg_catalog.pg_class c ON r.conrelid = c.oid
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diff changeset
   308
            JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
35
e7f79c4a27ce TableCopyTool: order tables with respect to references.
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diff changeset
   309
            LEFT JOIN pg_catalog.pg_class cf ON r.confrelid = cf.oid
e7f79c4a27ce TableCopyTool: order tables with respect to references.
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diff changeset
   310
            LEFT JOIN pg_catalog.pg_namespace nf ON nf.oid = cf.relnamespace
0
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parents:
diff changeset
   311
            WHERE n.nspname = %s AND c.relname = %s
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diff changeset
   312
            ORDER BY 1
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   313
            ''', [schema, table])
0
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parents:
diff changeset
   314
eaae9539e910 Postgres tools.
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diff changeset
   315
    def list_indexes(self, table, schema='public'):
eaae9539e910 Postgres tools.
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diff changeset
   316
        return self._query('''
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Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   317
            SELECT
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   318
                c2.relname as "name",
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   319
                i.indisprimary as "primary",
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   320
                i.indisunique as "unique",
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   321
                i.indisclustered as "clustered",
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   322
                i.indisvalid as "valid",
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   323
                pg_catalog.pg_get_indexdef(i.indexrelid, 0, true) as "definition",
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   324
                ARRAY(SELECT a.attname FROM pg_catalog.pg_attribute a WHERE a.attrelid = c2.oid ORDER BY attnum) AS "columns"
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   325
                --c2.reltablespace as "tablespace_oid"
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   326
            FROM pg_catalog.pg_class c
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   327
            JOIN pg_catalog.pg_index i ON c.oid = i.indrelid
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   328
            JOIN pg_catalog.pg_class c2 ON i.indexrelid = c2.oid
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   329
            JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   330
            WHERE n.nspname = %(schema)s AND c.relname = %(table)s
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   331
            ORDER BY i.indisprimary DESC, i.indisunique DESC, c2.relname
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   332
            ''', {'schema': schema, 'table': table})
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   333
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
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parents: 52
diff changeset
   334
    def list_functions(self, schema='public'):
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   335
        '''List functions in schema.'''
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   336
        return self._query('''
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   337
            SELECT
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
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parents: 52
diff changeset
   338
                p.oid as "oid",
59
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   339
                p.proname || '(' || array_to_string(
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   340
                    array(SELECT pg_catalog.format_type(unnest(p.proargtypes), NULL)),
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   341
                      ', '
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   342
                ) || ')' as "name",
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   343
                p.proname as "function_name",
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   344
                pg_catalog.pg_get_function_result(p.oid) as "result",
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   345
                p.prosrc as "source",
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   346
                CASE
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   347
                    WHEN p.proisagg THEN 'agg'
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   348
                    WHEN p.proiswindow THEN 'window'
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   349
                    WHEN p.prorettype = 'pg_catalog.trigger'::pg_catalog.regtype THEN 'trigger'
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   350
                    ELSE 'normal'
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   351
                END as "type"
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   352
            FROM pg_catalog.pg_proc p
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   353
            LEFT JOIN pg_catalog.pg_namespace n ON n.oid = p.pronamespace
59
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   354
            WHERE n.nspname = %s
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   355
            ORDER BY 1, 2, 4;
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   356
            ''', [schema])
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   357
59
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   358
    def list_function_args(self, oid):
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   359
        """List function arguments.
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   360
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   361
        Notes about query:
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   362
            type: Use allargtypes if present, argtypes otherwise.
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   363
                The trick with [0:999] moves lower bound from 0 to default 1
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   364
                by slicing all elements (slices has always lower bound 1).
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   365
            mode: This trick makes array of NULLs of same length as argnames,
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   366
                in case argmodes is NULL.
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   367
            default: Use pg_get_expr, split output by ', '
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   368
                FIXME: will fail if ', ' is present in default value string.
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
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parents: 58
diff changeset
   369
        """
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
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parents: 58
diff changeset
   370
        return self._query('''
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   371
            SELECT
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   372
              unnest(p.proargnames) AS "name",
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   373
              pg_catalog.format_type(unnest(
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   374
                COALESCE(p.proallargtypes, (p.proargtypes::oid[])[0:999])
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   375
              ), NULL) AS "type",
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   376
              unnest(
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   377
                COALESCE(
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   378
                  p.proargmodes::text[],
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   379
                  array(SELECT NULL::text FROM generate_series(1, array_upper(p.proargnames, 1)))
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   380
                )
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   381
              ) AS "mode",
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   382
              unnest(array_cat(
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   383
                array_fill(NULL::text, array[COALESCE(array_upper(p.proargnames,1),0) - p.pronargdefaults]),
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   384
                string_to_array(pg_get_expr(p.proargdefaults, 'pg_proc'::regclass, true), ', ')
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   385
              )) AS "default"
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   386
            FROM pg_proc p
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   387
            WHERE p.oid = %s''', [oid])
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   388
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   389
    def get_function_definition(self, oid):
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   390
        """Get full function definition, including CREATE command etc.
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   391
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   392
        Args:
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   393
            oid: function oid from pg_catalog.pg_proc (returned by list_functions)
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   394
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   395
        """
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   396
        return self._query('''select pg_get_functiondef(%s);''', [oid])
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 52
diff changeset
   397
40
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   398
    def list_sequences(self, schema=None):
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   399
        '''List sequences in schema.'''
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   400
        return self._query('''
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   401
            SELECT
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   402
                nc.nspname AS "sequence_schema",
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   403
                c.relname AS "sequence_name",
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   404
                t.relname AS "related_table",
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   405
                a.attname AS "related_column",
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   406
                format_type(a.atttypid, a.atttypmod) AS "related_column_type"
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   407
            FROM pg_class c
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   408
            JOIN pg_namespace nc ON nc.oid = c.relnamespace
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   409
            JOIN pg_depend d ON d.objid = c.oid
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   410
            JOIN pg_class t ON d.refobjid = t.oid
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   411
            JOIN pg_attribute a ON (d.refobjid, d.refobjsubid) = (a.attrelid, a.attnum)
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   412
            WHERE c.relkind = 'S' AND NOT pg_is_other_temp_schema(nc.oid)
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   413
            ''' + (schema and ' AND nc.nspname = %(schema)s' or '') + '''
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   414
        ''', {'schema': schema})
922d7fb63384 Add listserial tool. PgBrowser: Add list_sequences.
Radek Brich <radek.brich@devl.cz>
parents: 35
diff changeset
   415
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   416
    def list_column_usage(self, table, column, schema='public'):
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   417
        '''List objects using the column.
52
26121a8fe78b Update analyzeall tool: add REINDEX option. Add ibrowser tool (useful for PgBrowser testing). Fix PgBrowser.list_columns default value.
Radek Brich <radek.brich@devl.cz>
parents: 40
diff changeset
   418
32
d59c473c9ad7 Add batchupdate tool. PgBrowser: add constraints to list_column_usage().
Radek Brich <radek.brich@devl.cz>
parents: 31
diff changeset
   419
        Currently shows views and constraints which use the column.
52
26121a8fe78b Update analyzeall tool: add REINDEX option. Add ibrowser tool (useful for PgBrowser testing). Fix PgBrowser.list_columns default value.
Radek Brich <radek.brich@devl.cz>
parents: 40
diff changeset
   420
32
d59c473c9ad7 Add batchupdate tool. PgBrowser: add constraints to list_column_usage().
Radek Brich <radek.brich@devl.cz>
parents: 31
diff changeset
   421
        This is useful to find which views block alteration of column type etc.
52
26121a8fe78b Update analyzeall tool: add REINDEX option. Add ibrowser tool (useful for PgBrowser testing). Fix PgBrowser.list_columns default value.
Radek Brich <radek.brich@devl.cz>
parents: 40
diff changeset
   422
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   423
        '''
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   424
        return self._query('''
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   425
            SELECT
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   426
                'view' AS type, view_schema AS schema, view_name AS name
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   427
            FROM information_schema.view_column_usage
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   428
            WHERE table_schema=%(schema)s AND table_name=%(table)s AND column_name=%(column)s
52
26121a8fe78b Update analyzeall tool: add REINDEX option. Add ibrowser tool (useful for PgBrowser testing). Fix PgBrowser.list_columns default value.
Radek Brich <radek.brich@devl.cz>
parents: 40
diff changeset
   429
32
d59c473c9ad7 Add batchupdate tool. PgBrowser: add constraints to list_column_usage().
Radek Brich <radek.brich@devl.cz>
parents: 31
diff changeset
   430
            UNION
52
26121a8fe78b Update analyzeall tool: add REINDEX option. Add ibrowser tool (useful for PgBrowser testing). Fix PgBrowser.list_columns default value.
Radek Brich <radek.brich@devl.cz>
parents: 40
diff changeset
   431
32
d59c473c9ad7 Add batchupdate tool. PgBrowser: add constraints to list_column_usage().
Radek Brich <radek.brich@devl.cz>
parents: 31
diff changeset
   432
            SELECT
d59c473c9ad7 Add batchupdate tool. PgBrowser: add constraints to list_column_usage().
Radek Brich <radek.brich@devl.cz>
parents: 31
diff changeset
   433
                'constraint' AS type, constraint_schema AS schema, constraint_name AS name
d59c473c9ad7 Add batchupdate tool. PgBrowser: add constraints to list_column_usage().
Radek Brich <radek.brich@devl.cz>
parents: 31
diff changeset
   434
            FROM information_schema.constraint_column_usage
d59c473c9ad7 Add batchupdate tool. PgBrowser: add constraints to list_column_usage().
Radek Brich <radek.brich@devl.cz>
parents: 31
diff changeset
   435
            WHERE table_schema=%(schema)s AND table_name=%(table)s AND column_name=%(column)s
31
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   436
            ''', {'schema':schema, 'table':table, 'column':column})
c2e6e24b83d9 Add browser - database schema browser using tuikit (curses UI). Add listdepends - tool which shows depending views for column. Update pgdatadiff - allow composite primary key. Update pgmanager - RowDict is now OrderedDict. Drop support for Python2.x.
Radek Brich <radek.brich@devl.cz>
parents: 12
diff changeset
   437