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Update casts.sql #3

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Update casts.sql #3

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6279682
Update casts.sql
hmdgirl Jan 11, 2023
b80dc7d
Update casts.sql
hmdgirl Feb 6, 2023
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Update casts.sql 
Add BOOLEAN TO BIT, INT4 TO BIT, BIT TO INT4
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@hmdgirl
hmdgirl authored Feb 6, 2023
commit b80dc7dcab12b27018d336440fc208d07eb6653c
18 changes: 18 additions & 0 deletions sql_bits/casts.sql
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Original file line number Diff line number Diff line change
@@ -1,4 +1,22 @@
-- BOOLEAN TO BIT
CREATE OR REPLACE FUNCTION _boolean_to_bit(BOOLEAN)
RETURNS bit AS $$
SELECT
case $1 when true then 1::bit
else 0::bit end
$$ IMMUTABLE STRICT LANGUAGE SQL;

CREATE CAST (BOOLEAN AS bit)
WITH FUNCTION _boolean_to_bit(BOOLEAN)
AS IMPLICIT;

-- INT4 TO BIT(cast from type integer to type bit already exists)
-- select castsource::regtype,casttarget::regtype,castcontext,castfunc from pg_cast where castsource='integer'::regtype and casttarget='bit'::regtype;
update pg_cast set castcontext='i' where castsource ='integer'::regtype and casttarget='bit'::regtype;

-- BIT TO INT4(cast from type bit to type integer already exists)
-- select castsource::regtype,casttarget::regtype,castcontext,castfunc from pg_cast where castsource='bit'::regtype and casttarget='integer'::regtype;
update pg_cast set castcontext='i' where castsource ='bit'::regtype and casttarget='integer'::regtype;

-- TIME TO INTEGER
CREATE OR REPLACE FUNCTION _time_to_integer(time with time zone)
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