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adb7764030
Also cleaned up some redundancies between the primary error messages and the error context in PL/Python. Hannu Valtonen
124 lines
3.8 KiB
Plaintext
124 lines
3.8 KiB
Plaintext
-- test error handling, i forgot to restore Warn_restart in
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-- the trigger handler once. the errors and subsequent core dump were
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-- interesting.
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/* Flat out syntax error
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*/
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CREATE FUNCTION sql_syntax_error() RETURNS text
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AS
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'plpy.execute("syntax error")'
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LANGUAGE plpythonu;
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SELECT sql_syntax_error();
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WARNING: PL/Python: plpy.SPIError: unrecognized error in PLy_spi_execute_query
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CONTEXT: PL/Python function "sql_syntax_error"
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ERROR: syntax error at or near "syntax"
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LINE 1: syntax error
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^
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QUERY: syntax error
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CONTEXT: PL/Python function "sql_syntax_error"
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/* check the handling of uncaught python exceptions
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*/
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CREATE FUNCTION exception_index_invalid(text) RETURNS text
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AS
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'return args[1]'
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LANGUAGE plpythonu;
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SELECT exception_index_invalid('test');
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ERROR: PL/Python: IndexError: list index out of range
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CONTEXT: PL/Python function "exception_index_invalid"
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/* check handling of nested exceptions
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*/
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CREATE FUNCTION exception_index_invalid_nested() RETURNS text
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AS
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'rv = plpy.execute("SELECT test5(''foo'')")
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return rv[0]'
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LANGUAGE plpythonu;
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SELECT exception_index_invalid_nested();
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WARNING: PL/Python: plpy.SPIError: unrecognized error in PLy_spi_execute_query
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CONTEXT: PL/Python function "exception_index_invalid_nested"
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ERROR: function test5(unknown) does not exist
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LINE 1: SELECT test5('foo')
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^
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HINT: No function matches the given name and argument types. You might need to add explicit type casts.
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QUERY: SELECT test5('foo')
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CONTEXT: PL/Python function "exception_index_invalid_nested"
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/* a typo
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*/
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CREATE FUNCTION invalid_type_uncaught(a text) RETURNS text
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AS
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'if "plan" not in SD:
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q = "SELECT fname FROM users WHERE lname = $1"
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SD["plan"] = plpy.prepare(q, [ "test" ])
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rv = plpy.execute(SD["plan"], [ a ])
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if len(rv):
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return rv[0]["fname"]
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return None
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'
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LANGUAGE plpythonu;
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SELECT invalid_type_uncaught('rick');
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WARNING: PL/Python: plpy.SPIError: unrecognized error in PLy_spi_prepare
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CONTEXT: PL/Python function "invalid_type_uncaught"
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ERROR: type "test" does not exist
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CONTEXT: PL/Python function "invalid_type_uncaught"
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/* for what it's worth catch the exception generated by
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* the typo, and return None
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*/
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CREATE FUNCTION invalid_type_caught(a text) RETURNS text
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AS
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'if "plan" not in SD:
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q = "SELECT fname FROM users WHERE lname = $1"
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try:
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SD["plan"] = plpy.prepare(q, [ "test" ])
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except plpy.SPIError, ex:
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plpy.notice(str(ex))
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return None
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rv = plpy.execute(SD["plan"], [ a ])
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if len(rv):
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return rv[0]["fname"]
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return None
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'
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LANGUAGE plpythonu;
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SELECT invalid_type_caught('rick');
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WARNING: PL/Python: plpy.SPIError: unrecognized error in PLy_spi_prepare
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CONTEXT: PL/Python function "invalid_type_caught"
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ERROR: type "test" does not exist
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CONTEXT: PL/Python function "invalid_type_caught"
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/* for what it's worth catch the exception generated by
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* the typo, and reraise it as a plain error
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*/
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CREATE FUNCTION invalid_type_reraised(a text) RETURNS text
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AS
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'if "plan" not in SD:
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q = "SELECT fname FROM users WHERE lname = $1"
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try:
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SD["plan"] = plpy.prepare(q, [ "test" ])
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except plpy.SPIError, ex:
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plpy.error(str(ex))
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rv = plpy.execute(SD["plan"], [ a ])
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if len(rv):
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return rv[0]["fname"]
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return None
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'
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LANGUAGE plpythonu;
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SELECT invalid_type_reraised('rick');
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WARNING: PL/Python: plpy.SPIError: unrecognized error in PLy_spi_prepare
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CONTEXT: PL/Python function "invalid_type_reraised"
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ERROR: type "test" does not exist
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CONTEXT: PL/Python function "invalid_type_reraised"
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/* no typo no messing about
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*/
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CREATE FUNCTION valid_type(a text) RETURNS text
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AS
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'if "plan" not in SD:
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SD["plan"] = plpy.prepare("SELECT fname FROM users WHERE lname = $1", [ "text" ])
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rv = plpy.execute(SD["plan"], [ a ])
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if len(rv):
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return rv[0]["fname"]
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return None
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'
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LANGUAGE plpythonu;
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SELECT valid_type('rick');
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valid_type
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------------
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(1 row)
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