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Revision 12282

schemas/util.sql: diff_any(): documented how to run EXPLAIN on the FULL JOIN query

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trunk/schemas/util.sql
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COMMENT ON FUNCTION diff_any(left_ text, right_ text, col_type_null anyelement, OUT left_ anyelement, OUT right_ anyelement) IS '
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col_type_null (*required*): NULL::col_type
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to run EXPLAIN on the FULL JOIN query:
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# run this function
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# look for a NOTICE containing the expanded query that it ran
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# run EXPLAIN on this expanded query
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';
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