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2d4db3675f
were accepted by prior Postgres releases. This takes care of the loose end left by the preceding patch to downgrade implicit casts-to-text. To avoid breaking desirable behavior for array concatenation, introduce a new polymorphic pseudo-type "anynonarray" --- the added concatenation operators are actually text || anynonarray and anynonarray || text.
31 lines
735 B
SQL
31 lines
735 B
SQL
--
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-- TEXT
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--
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SELECT text 'this is a text string' = text 'this is a text string' AS true;
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SELECT text 'this is a text string' = text 'this is a text strin' AS false;
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CREATE TABLE TEXT_TBL (f1 text);
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INSERT INTO TEXT_TBL VALUES ('doh!');
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INSERT INTO TEXT_TBL VALUES ('hi de ho neighbor');
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SELECT '' AS two, * FROM TEXT_TBL;
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-- As of 8.3 we have removed most implicit casts to text, so that for example
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-- this no longer works:
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select length(42);
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-- But as a special exception for usability's sake, we still allow implicit
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-- casting to text in concatenations, so long as the other input is text or
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-- an unknown literal. So these work:
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select 'four: '::text || 2+2;
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select 'four: ' || 2+2;
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-- but not this:
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select 3 || 4.0;
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