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-- pldbg.sql
-- This script creates the data types and functions defined by the PL debugger API
--
-- Copyright (c) 2004-2018 EnterpriseDB Corporation. All Rights Reserved.
--
-- Licensed under the Artistic License v2.0, see
-- https://opensource.org/licenses/artistic-license-2.0
-- for full details
\echo Installing pldebugger as unpackaged objects. If you are using PostgreSQL
\echo version 9.1 or above, use "CREATE EXTENSION pldbgapi" instead.
CREATE TYPE breakpoint AS ( func OID, linenumber INTEGER, targetName TEXT );
CREATE TYPE frame AS ( level INT, targetname TEXT, func OID, linenumber INTEGER, args TEXT );
CREATE TYPE var AS ( name TEXT, varClass char, lineNumber INTEGER, isUnique bool, isConst bool, isNotNull bool, dtype OID, value TEXT );
CREATE TYPE proxyInfo AS ( serverVersionStr TEXT, serverVersionNum INT, proxyAPIVer INT, serverProcessID INT );
CREATE FUNCTION pldbg_oid_debug( functionOID OID ) RETURNS INTEGER AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
-- for backwards-compatibility
CREATE FUNCTION plpgsql_oid_debug( functionOID OID ) RETURNS INTEGER AS $$ SELECT pldbg_oid_debug($1) $$ LANGUAGE sql STRICT;
CREATE FUNCTION pldbg_abort_target( session INTEGER ) RETURNS SETOF boolean AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_attach_to_port( portNumber INTEGER ) RETURNS INTEGER AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_continue( session INTEGER ) RETURNS breakpoint AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_create_listener() RETURNS INTEGER AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_deposit_value( session INTEGER, varName TEXT, lineNumber INTEGER, value TEXT ) RETURNS boolean AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_drop_breakpoint( session INTEGER, func OID, linenumber INTEGER ) RETURNS boolean AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_get_breakpoints( session INTEGER ) RETURNS SETOF breakpoint AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_get_source( session INTEGER, func OID ) RETURNS TEXT AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_get_stack( session INTEGER ) RETURNS SETOF frame AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_get_proxy_info( ) RETURNS proxyInfo AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_get_variables( session INTEGER ) RETURNS SETOF var AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_select_frame( session INTEGER, frame INTEGER ) RETURNS breakpoint AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_set_breakpoint( session INTEGER, func OID, linenumber INTEGER ) RETURNS boolean AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_set_global_breakpoint( session INTEGER, func OID, linenumber INTEGER, targetPID INTEGER ) RETURNS boolean AS '$libdir/plugin_debugger' LANGUAGE C;
CREATE FUNCTION pldbg_step_into( session INTEGER ) RETURNS breakpoint AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_step_over( session INTEGER ) RETURNS breakpoint AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_wait_for_breakpoint( session INTEGER ) RETURNS breakpoint AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
CREATE FUNCTION pldbg_wait_for_target( session INTEGER ) RETURNS INTEGER AS '$libdir/plugin_debugger' LANGUAGE C STRICT;
/*
* pldbg_get_target_info() function can be used to return information about
* a function.
*
* Deprecated. This is used by the pgAdmin debugger GUI, but new applications
* should just query the catalogs directly.
*/
CREATE TYPE targetinfo AS ( target OID, schema OID, nargs INT, argTypes oidvector, targetName NAME, argModes "char"[], argNames TEXT[], targetLang OID, fqName TEXT, returnsSet BOOL, returnType OID,
-- The following columns are only needed when running in an EnterpriseDB
-- server. On PostgreSQL, we return just dummy values for them.
--
-- 'isFunc' and 'pkg' only make sense on EnterpriseDB. 'isfunc' is true
-- if the function is a regular function, not a stored procedure or a
-- function that was created implictly to back a trigger created with the
-- Oracle-compatible CREATE TRIGGER syntax. If the function belongs to a
-- package, 'pkg' is the package's OID, or 0 otherwise.
--
-- 'argDefVals' is a representation of the function's argument DEFAULTs.
-- That would be nice to have on PostgreSQL as well. Unfortunately our
-- current implementation relies on an EDB-only function to get that
-- information, so we cannot just use it as is. TODO: rewrite that using
-- pg_get_expr(pg_proc.proargdefaults).
isFunc BOOL,
pkg OID,
argDefVals TEXT[]
);
-- Create the pldbg_get_target_info() function. We use an inline code block
-- so that we can check and create it slightly differently if running on
-- an EnterpriseDB server.
DO $do$
declare
isedb bool;
createstmt text;
begin
isedb = (SELECT version() LIKE '%EnterpriseDB%');
createstmt := $create_stmt$
CREATE FUNCTION pldbg_get_target_info(signature text, targetType "char") returns targetinfo AS $$
SELECT p.oid AS target,
pronamespace AS schema,
pronargs::int4 AS nargs,
-- The returned argtypes column is of type oidvector, but unlike
-- proargtypes, it's supposed to include OUT params. So we
-- essentially have to return proallargtypes, converted to an
-- oidvector. There is no oid[] -> oidvector cast, so we have to
-- do it via text.
CASE WHEN proallargtypes IS NOT NULL THEN
translate(proallargtypes::text, ',{}', ' ')::oidvector
ELSE
proargtypes
END AS argtypes,
proname AS targetname,
proargmodes AS argmodes,
proargnames AS proargnames,
prolang AS targetlang,
quote_ident(nspname) || '.' || quote_ident(proname) AS fqname,
proretset AS returnsset,
prorettype AS returntype,
$create_stmt$;
-- Add the three EDB-columns to the query (as dummies if we're installing
-- to PostgreSQL)
IF isedb THEN
createstmt := createstmt ||
$create_stmt$
p.protype='0' AS isfunc,
CASE WHEN n.nspparent <> 0 THEN n.oid ELSE 0 END AS pkg,
edb_get_func_defvals(p.oid) AS argdefvals
$create_stmt$;
ELSE
createstmt := createstmt ||
$create_stmt$
't'::bool AS isfunc,
0::oid AS pkg,
NULL::text[] AS argdefvals
$create_stmt$;
END IF;
-- End of conditional part
createstmt := createstmt ||
$create_stmt$
FROM pg_proc p, pg_namespace n
WHERE p.pronamespace = n.oid
AND p.oid = $1::oid
-- We used to support querying by function name or trigger name/oid as well,
-- but that was never used in the client, so the support for that has been
-- removed. The targeType argument remains as a legacy of that. You're
-- expected to pass 'o' as target type, but it doesn't do anything.
AND $2 = 'o'
$$ LANGUAGE SQL;
$create_stmt$;
execute createstmt;
-- Add a couple of EDB specific functions
IF isedb THEN
CREATE FUNCTION edb_oid_debug(functionOID oid) RETURNS integer AS $$
select pldbg_oid_debug($1);
$$ LANGUAGE SQL;
CREATE FUNCTION pldbg_get_pkg_cons(packageOID oid) RETURNS oid AS $$
select oid from pg_proc where pronamespace=$1 and proname='cons';
$$ LANGUAGE SQL;
END IF;
end;
$do$;