Tests for Explain and Explain analyze with the output XML and JSON

Add other variables fields
Add explain test to the parallel group for GreenPlum
Add optimizer tests

src/test/regress/greenplum_schedule

@@ -25,7 +25,7 @@ test: spi_processed64bit
 test: python_processed64bit
 
 test: leastsquares opr_sanity_gp decode_expr bitmapscan bitmapscan_ao case_gp limit_gp notin percentile join_gp union_gp gpcopy gp_create_table gp_create_view window_views
-test: filter gpctas gpdist matrix toast sublink table_functions olap_setup complex opclass_ddl information_schema guc_env_var guc_gp gp_explain distributed_transactions
+test: filter gpctas gpdist matrix toast sublink table_functions olap_setup complex opclass_ddl information_schema guc_env_var guc_gp gp_explain distributed_transactions explain_format
 
 test: bitmap_index gp_dump_query_oids analyze gp_owner_permission incremental_analyze
 test: indexjoin as_alias regex_gp gpparams with_clause transient_types gp_rules

src/test/regress/sql/explain_format.sql

@@ -16,11 +16,97 @@ CREATE TABLE apples(id int PRIMARY KEY, type text);
 CREATE TABLE locations(id int PRIMARY KEY, address text);
 CREATE TABLE boxes(id int PRIMARY KEY, apple_id int REFERENCES apples(id), location_id int REFERENCES locations(id));
 
---- Check Explain Text output
+--- Check Explain Text format output
+-- explain_processing_off
 EXPLAIN SELECT * from boxes LEFT JOIN apples ON apples.id = boxes.apple_id LEFT JOIN locations ON locations.id = boxes.location_id;
+-- explain_processing_on
 
---- Check Explain Analyze Text output
+--- Check Explain Analyze Text output that include the slices information
 -- explain_processing_off
 EXPLAIN (ANALYZE) SELECT * from boxes LEFT JOIN apples ON apples.id = boxes.apple_id LEFT JOIN locations ON locations.id = boxes.location_id;
 -- explain_processing_on
 
+-- YAML Required replaces for costs and time changes
+-- start_matchsubs
+-- m/ Loops: \d+ /
+-- s/ Loops: \d+\s+/ Loops: # /
+-- m/ Cost: \d+\.\d+ /
+-- s/ Cost: \d+\.\d+\s+/ Cost: ###.## /
+-- m/ Rows: \d+ /
+-- s/ Rows: \d+\s+/ Rows: ##### /
+-- m/ Plan Width: \d+ /
+-- s/ Plan Width: \d+\s+/ Plan Width: ## /
+-- m/ Time: \d+\.\d+ /
+-- s/ Time: \d+\.\d+\s+/ Time: ##.### /
+-- m/Total Runtime: \d+\.\d+/
+-- s/Total Runtime: \d+\.\d+/Total Runtime: ##.###/
+-- m/Segments: \d+\s+/
+-- s/Segments: \d+\s+/Segments: #/
+-- m/PQO version \d+\.\d+\.\d+"\s+/
+-- s/PQO version \d+\.\d+\.\d+"\s+/PQO version ##.##.##"/
+-- end_matchsubs
+-- Check Explain YAML output
+EXPLAIN (FORMAT YAML) SELECT * from boxes LEFT JOIN apples ON apples.id = boxes.apple_id LEFT JOIN locations ON locations.id = boxes.location_id;
+
+--- Check Explain Analyze YAML output that include the slices information
+-- explain_processing_off
+EXPLAIN (ANALYZE, FORMAT YAML) SELECT * from boxes LEFT JOIN apples ON apples.id = boxes.apple_id LEFT JOIN locations ON locations.id = boxes.location_id;
+-- explain_processing_on
+
+-- JSON Required replaces for costs and time changes
+-- start_matchsubs
+-- m/ Loops": \d+,?\s+/
+-- s/ Loops": \d+,?\s+/ Loops": #, /
+-- m/ Cost": \d+\.\d+, /
+-- s/ Cost": \d+\.\d+,\s+/ Cost": ###.##, /
+-- m/ Rows": \d+, /
+-- s/ Rows": \d+,\s+/ Rows": #####, /
+-- m/"Plan Width": \d+,? /
+-- s/"Plan Width": \d+,?\s+/"Plan Width": ##, /
+-- m/ Time": \d+\.\d+, /
+-- s/ Time": \d+\.\d+,\s+/ Time": ##.###, /
+-- m/Total Runtime": \d+\.\d+,?\s+/
+-- s/Total Runtime": \d+\.\d+,?\s+/Total Runtime": ##.###,/
+-- m/"Memory used": \d+,?\s+/
+-- s/"Memory used": \d+,?\s+/"Memory used": ####,/
+-- m/"Segments": \d+,\s+/
+-- s/"Segments": \d+,\s+/"Segments": #,/
+-- end_matchsubs
+-- explain_processing_off
+-- Check Explain JSON output
+EXPLAIN (FORMAT JSON) SELECT * from boxes LEFT JOIN apples ON apples.id = boxes.apple_id LEFT JOIN locations ON locations.id = boxes.location_id;
+-- explain_processing_on
+
+--- Check Explain Analyze JSON output that include the slices information
+-- explain_processing_off
+EXPLAIN (ANALYZE, FORMAT JSON) SELECT * from boxes LEFT JOIN apples ON apples.id = boxes.apple_id LEFT JOIN locations ON locations.id = boxes.location_id;
+-- explain_processing_on
+
+-- XML Required replaces for costs and time changes
+-- start_matchsubs
+-- m/Cost>\d+\.\d+<\/[^>]+\-Cost>\s+/
+-- s/Cost>\d+\.\d+<\/([^>]+)\-Cost>\s+/Cost>###.##<\/$1-Cost>/
+-- m/Plan-Rows>\d+<\/Plan-Rows>\s+/
+-- s/Plan-Rows>\d+<\/Plan-Rows>\s+/Plan-Rows>###<\/Plan-Rows>/
+-- m/Plan-Width>\d+<\/Plan-Width>\s+/
+-- s/Plan-Width>\d+<\/Plan-Width>\s+/Plan-Width>###<\/Plan-Width>/
+-- m/Segments>\d+<\/Segments>\s+/
+-- s/Segments>\d+<\/Segments>\s+/Segments>##<\/Segments>/
+-- m/-Time>\d+\.\d+<\/[^>]+\-Time>\s+/
+-- s/-Time>\d+\.\d+<\/([^>]+)\-Time>\s+/-Time>##.###<\/$1-Time>/
+-- m/Total-Runtime>\d+\.\d+<\/Total-Runtime>\s+/
+-- s/Total-Runtime>\d+\.\d+<\/Total-Runtime>\s+/Total-Runtime>##.###<\/Total-Runtime>/
+-- m/Memory-used>\d+<\/Memory-used>\s+/
+-- s/Memory-used>\d+<\/Memory-used>\s+/Memory-used>###<\/Memory-used>/
+-- m/PQO version \d+\.\d+\.\d+/
+-- s/PQO version \d+\.\d+\.\d+/PQO version ##.##.##/
+-- end_matchsubs
+-- explain_processing_off
+-- Check Explain XML output
+EXPLAIN (FORMAT XML) SELECT * from boxes LEFT JOIN apples ON apples.id = boxes.apple_id LEFT JOIN locations ON locations.id = boxes.location_id;
+-- explain_processing_on
+
+-- explain_processing_off
+-- Check Explain Analyze XML output
+EXPLAIN (ANALYZE, FORMAT XML) SELECT * from boxes LEFT JOIN apples ON apples.id = boxes.apple_id LEFT JOIN locations ON locations.id = boxes.location_id;
+-- explain_processing_on