chore: import upstream snapshot with attribution

2026-07-13 12:32:25 +08:00
commit e014feafe1
2285 changed files with 1131979 additions and 0 deletions
@@ -0,0 +1,80 @@
+-- Regression tests for prepareable statements. We query the content
+-- of the pg_prepared_statements view as prepared statements are
+-- created and removed.
+
+SELECT name, statement, parameter_types FROM pg_prepared_statements;
+
+PREPARE q1 AS SELECT 1 AS a;
+EXECUTE q1;
+
+SELECT name, statement, parameter_types FROM pg_prepared_statements;
+
+-- should fail
+PREPARE q1 AS SELECT 2;
+
+-- should succeed
+DEALLOCATE q1;
+PREPARE q1 AS SELECT 2;
+EXECUTE q1;
+
+PREPARE q2 AS SELECT 2 AS b;
+SELECT name, statement, parameter_types FROM pg_prepared_statements;
+
+-- sql92 syntax
+DEALLOCATE PREPARE q1;
+
+SELECT name, statement, parameter_types FROM pg_prepared_statements;
+
+DEALLOCATE PREPARE q2;
+-- the view should return the empty set again
+SELECT name, statement, parameter_types FROM pg_prepared_statements;
+
+-- parameterized queries
+PREPARE q2(text) AS
+	SELECT datname, datistemplate, datallowconn
+	FROM pg_database WHERE datname = $1;
+
+EXECUTE q2('postgres');
+
+PREPARE q3(text, int, float, boolean, smallint) AS
+	SELECT * FROM tenk1 WHERE string4 = $1 AND (four = $2 OR
+	ten = $3::bigint OR true = $4 OR odd = $5::int)
+	ORDER BY unique1;
+
+EXECUTE q3('AAAAxx', 5::smallint, 10.5::float, false, 4::bigint);
+
+-- too few params
+EXECUTE q3('bool');
+
+-- too many params
+EXECUTE q3('bytea', 5::smallint, 10.5::float, false, 4::bigint, true);
+
+-- wrong param types
+EXECUTE q3(5::smallint, 10.5::float, false, 4::bigint, 'bytea');
+
+-- invalid type
+PREPARE q4(nonexistenttype) AS SELECT $1;
+
+-- create table as execute
+PREPARE q5(int, text) AS
+	SELECT * FROM tenk1 WHERE unique1 = $1 OR stringu1 = $2
+	ORDER BY unique1;
+CREATE TEMPORARY TABLE q5_prep_results AS EXECUTE q5(200, 'DTAAAA');
+SELECT * FROM q5_prep_results;
+CREATE TEMPORARY TABLE q5_prep_nodata AS EXECUTE q5(200, 'DTAAAA')
+    WITH NO DATA;
+SELECT * FROM q5_prep_nodata;
+
+-- unknown or unspecified parameter types: should succeed
+PREPARE q6 AS
+    SELECT * FROM tenk1 WHERE unique1 = $1 AND stringu1 = $2;
+PREPARE q7(unknown) AS
+    SELECT * FROM road WHERE thepath = $1;
+
+SELECT name, statement, parameter_types FROM pg_prepared_statements
+    ORDER BY name;
+
+-- test DEALLOCATE ALL;
+DEALLOCATE ALL;
+SELECT name, statement, parameter_types FROM pg_prepared_statements
+    ORDER BY name;