ydb/yql/essentials/tests/postgresql/cases/expressions.sql

--
-- expression evaluation tests that don't fit into a more specific file
--
--
-- Tests for SQLVAlueFunction
--
-- current_date  (always matches because of transactional behaviour)
SELECT date(now())::text = current_date::text;
-- current_time / localtime
SELECT now()::timetz::text = current_time::text;
SELECT now()::timetz(4)::text = current_time(4)::text;
-- current_timestamp / localtimestamp (always matches because of transactional behaviour)
SELECT current_timestamp = NOW();
-- precision
SELECT length(current_timestamp::text) >= length(current_timestamp(0)::text);
-- current_role/user/user is tested in rolnames.sql
-- current database / catalog
SELECT current_catalog = current_database();
-- current_schema
SELECT current_schema;
SET search_path = 'pg_catalog';
SELECT current_schema;
--
-- Test parsing of a no-op cast to a type with unspecified typmod
--
begin;
create table numeric_tbl (f1 numeric(18,3), f2 numeric);
-- bpchar, lacking planner support for its length coercion function,
-- could behave differently
create table bpchar_tbl (f1 character(16) unique, f2 bpchar);
rollback;
--
-- Tests for ScalarArrayOpExpr with a hashfn
--
-- create a stable function so that the tests below are not
-- evaluated using the planner's constant folding.
begin;
rollback;
-- Test with non-strict equality function.
-- We need to create our own type for this.
begin;
create table inttest (a myint);
rollback;