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chore(postgres): dump acquired knowledge
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@@ -302,6 +302,7 @@ CREATE OR REPLACE FUNCTION return_1() RETURNS INTEGER LANGUAGE SQL RETURN 1;
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-- Type casting
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SELECT pg_typeof(10);
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SELECT
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CAST ('21' AS INTEGER), 420.69::INTEGER,
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CAST('100' AS DOUBLE PRECISION), '100.93'::FLOAT,
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