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Fix two issues in plpython's handling of composite results.

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Dropped columns within a composite type were not handled correctly.
Also, we did not check for whether a composite result type had changed
since we cached the information about it.

Jan Urbański, per a bug report from Jean-Baptiste Quenot
This commit is contained in:
Tom Lane
2011-08-17 17:07:16 -04:00
parent 68c903a66c
commit 2dada0cc85
3 changed files with 120 additions and 30 deletions
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15
src/pl/plpython/sql/plpython_record.sql
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@@ -112,6 +112,21 @@ SELECT * FROM test_in_out_params('test_in');
SELECT * FROM test_in_out_params_multi('test_in');
SELECT * FROM test_inout_params('test_in');
-- try changing the return types and call functions again
ALTER TABLE table_record DROP COLUMN first;
ALTER TABLE table_record DROP COLUMN second;
ALTER TABLE table_record ADD COLUMN first text;
ALTER TABLE table_record ADD COLUMN second int4;
SELECT * FROM test_table_record_as('obj', 'one', 1, false);
ALTER TYPE type_record DROP ATTRIBUTE first;
ALTER TYPE type_record DROP ATTRIBUTE second;
ALTER TYPE type_record ADD ATTRIBUTE first text;
ALTER TYPE type_record ADD ATTRIBUTE second int4;
SELECT * FROM test_type_record_as('obj', 'one', 1, false);
-- errors cases