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https://github.com/timescale/timescaledb.git
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6dddfaa54e
This patch locks down search_path in extension install and update scripts to only contain pg_catalog, this requires that any reference in those scripts is fully qualified. Additionally we add explicit create commands to all update scripts for objects added to the public schema. This change will make update scripts fail if a function with identical signature already exists when installing or upgrading instead reusing the existing object.
59 lines
2.1 KiB
SQL
59 lines
2.1 KiB
SQL
-- This file and its contents are licensed under the Apache License 2.0.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-APACHE for a copy of the license.
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-- This file contains functions related to getting information about the
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-- schema of a hypertable, including columns, their types, etc.
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-- Check if a given table OID is a main table (i.e. the table a user
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-- targets for SQL operations) for a hypertable
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CREATE OR REPLACE FUNCTION _timescaledb_internal.is_main_table(
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table_oid regclass
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)
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RETURNS bool LANGUAGE SQL STABLE AS
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$BODY$
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SELECT EXISTS(SELECT 1 FROM _timescaledb_catalog.hypertable WHERE table_name = relname AND schema_name = nspname)
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FROM pg_class c
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INNER JOIN pg_namespace n ON (n.OID = c.relnamespace)
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WHERE c.OID = table_oid;
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$BODY$ SET search_path TO pg_catalog;
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-- Check if given table is a hypertable's main table
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CREATE OR REPLACE FUNCTION _timescaledb_internal.is_main_table(
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schema_name NAME,
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table_name NAME
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)
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RETURNS BOOLEAN LANGUAGE SQL STABLE AS
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$BODY$
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SELECT EXISTS(
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SELECT 1 FROM _timescaledb_catalog.hypertable h
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WHERE h.schema_name = is_main_table.schema_name AND
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h.table_name = is_main_table.table_name
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);
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$BODY$ SET search_path TO pg_catalog;
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-- Get a hypertable given its main table OID
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CREATE OR REPLACE FUNCTION _timescaledb_internal.hypertable_from_main_table(
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table_oid regclass
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)
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RETURNS _timescaledb_catalog.hypertable LANGUAGE SQL STABLE AS
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$BODY$
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SELECT h.*
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FROM pg_class c
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INNER JOIN pg_namespace n ON (n.OID = c.relnamespace)
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INNER JOIN _timescaledb_catalog.hypertable h ON (h.table_name = c.relname AND h.schema_name = n.nspname)
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WHERE c.OID = table_oid;
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$BODY$ SET search_path TO pg_catalog;
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CREATE OR REPLACE FUNCTION _timescaledb_internal.main_table_from_hypertable(
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hypertable_id int
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)
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RETURNS regclass LANGUAGE SQL STABLE AS
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$BODY$
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SELECT format('%I.%I',h.schema_name, h.table_name)::regclass
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FROM _timescaledb_catalog.hypertable h
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WHERE id = hypertable_id;
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$BODY$ SET search_path TO pg_catalog;
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