I'm trying to use Postgresql encode() function and put some other functions as it's arguments. I get errors, and I can't understand why. I am using Postgres 9.6.14 on Windows. This works fine and returns 698d51a19d8a121ce581499d7b701668 select md5('111'); This also ...
Calculate the cosine similarity between two vectors using a custom function. Here's the function to calculate the cosine similarity: CREATE OR REPLACE FUNCTION cosine_similarity(a double precision[], b double precision[]) RETURNS double precision AS $$ DECLARE dot_product double precision; norm_a ...
For columns created using one of the serial types (serial, smallserial, bigserial), it is the sequence created for that serial column definition. In the latter case, this association can be modified or removed with ALTER SEQUENCE OWNED BY. (The function probably should h...
psql:2009-10-22_agent_activity_report_test.sql:179: ERROR: a column definition list is required for functions returning "record" CONTEXT: SQL statement "SELECT * FROM reports.get_agent_activity_breakdown('percentage', NULL, NULL)" PL/pgSQL function "test_agent_activity" line 92 at SQL stat...
\ef [FUNCNAME] edit function definition with external editor \p show the contents of the query buffer \r reset (clear) the query buffer \s [FILE] display history or save it to file \w FILE write query buffer to file Input/Output ...
Executing (default): SELECT i.relname AS name, ix.indisprimary AS primary, ix.indisunique AS unique, ix.indkey AS indkey, array_agg(a.attnum) as column_indexes, array_agg(a.attname) AS column_names, pg_get_indexdef(ix.indexrelid) AS definition FROM pg_class t, pg_class i, pg_...
The selection of the internal function to use is determined by the data type of the operands. Postgres operator definition includes the data types of operands. Each function is distinct, and they differ from the function mentioned intext_concat. Stability is also observed in||whenanynonarrayis ...
CREATE FUNCTION get_employees() RETURNS SETOF employee AS $$ BEGIN RETURN QUERY SELECT * FROM employee WHERE end_date IS NULL; END; $$ LANGUAGE plpgsql; This syntax is usedinsteadof theRETURNS TABLEsyntax when you don't want to repeat the definition of an existing table...
*/ #define PG_GET_COLLATION() (fcinfo->fncollation) /* * Get number of arguments passed to function. */ #define PG_NARGS() (fcinfo->nargs) /* * If function is not marked "proisstrict" in pg_proc, it must check for * null arguments using this macro. Do not try to GETARG a ...
String Length Function The SQL function call to get the length of a string. Use the token {0} to represent the argument. get Long Varbinary Type Name get Long Varbinary Type Name Supports Unique Constraints When true, the database supports unique constraints. Supports Restrict Delete Action When...