feat: firebird FKs, PKs, procedures, funcs

plugins/dbgate-plugin-firebird/src/backend/sql/functionParameters.js

@@ -0,0 +1,31 @@
+module.exports = `
+SELECT
+    TRIM(F.RDB$OWNER_NAME) AS "owningObjectSchemaName", -- Schema of the function this parameter belongs to
+    TRIM(FA.RDB$FUNCTION_NAME) AS "owningObjectName",  -- Name of the function this parameter belongs to
+    TRIM(FA.RDB$ARGUMENT_NAME) AS "parameterName",
+    FFLDS.RDB$FIELD_TYPE AS "dataTypeCode",                  -- SQL data type code from RDB$FIELDS
+    FFLDS.rdb$field_precision AS "precision",
+    FFLDS.rdb$field_scale AS "scale",
+    FFLDS.rdb$field_length AS "length",
+
+    TRIM(CASE
+        WHEN FA.RDB$ARGUMENT_POSITION = F.RDB$RETURN_ARGUMENT THEN 'RETURN'
+        ELSE 'IN' -- For PSQL functions, non-return arguments are IN.
+    END) AS "parameterMode",
+    FA.RDB$ARGUMENT_POSITION AS "position", -- 0-based index for arguments
+
+    -- Fields for ParameterInfo.NamedObjectInfo
+    TRIM(FA.RDB$FUNCTION_NAME) AS "pureName", -- NamedObjectInfo.pureName for the parameter
+    TRIM(F.RDB$OWNER_NAME) AS "schemaName" -- NamedObjectInfo.schemaName (owner of the function)
+
+FROM
+    RDB$FUNCTION_ARGUMENTS FA
+JOIN
+    RDB$FUNCTIONS F ON FA.RDB$FUNCTION_NAME = F.RDB$FUNCTION_NAME
+JOIN
+    RDB$FIELDS FFLDS ON FA.RDB$FIELD_SOURCE = FFLDS.RDB$FIELD_NAME -- Crucial join to get RDB$FIELDS.RDB$TYPE
+WHERE
+    COALESCE(F.RDB$SYSTEM_FLAG, 0) = 0 -- Filter for user-defined functions
+ORDER BY
+    "owningObjectSchemaName", "owningObjectName", "position";
+`;