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17 lines
458 B
17 lines
458 B
8 months ago
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```sql
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CREATE OR REPLACE FUNCTION "public"."uuid_generate_v4"()
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RETURNS "pg_catalog"."uuid" AS '$libdir/uuid-ossp', 'uuid_generate_v4'
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LANGUAGE c VOLATILE STRICT
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COST 1;
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```
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openGauss写法
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```sql
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CREATE OR REPLACE FUNCTION "public"."uuid_generate_v4"() returns varchar
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LANGUAGE plpgsql
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NOT FENCED NOT SHIPPABLE
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AS $function$ DECLARE
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BEGIN
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RETURN (select upper(md5(random()::text || clock_timestamp()::text) :: varchar));
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END$function$;
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```
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