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SET @session_start_value = @@session.max_points_in_geometry; SET @global_start_value = @@global.max_points_in_geometry; '#--------------------FN_DYNVARS_001_01------------------------#' SET @@max_points_in_geometry = DEFAULT; SELECT @@max_points_in_geometry = 65536; @@max_points_in_geometry = 65536 1 '#---------------------FN_DYNVARS_001_02-------------------------#' SET @@global.max_points_in_geometry = 1000; select @@global.max_points_in_geometry = @@session.max_points_in_geometry; @@global.max_points_in_geometry = @@session.max_points_in_geometry 0 SET @@session.max_points_in_geometry = 1000; select @@global.max_points_in_geometry = @@session.max_points_in_geometry; @@global.max_points_in_geometry = @@session.max_points_in_geometry 1 '#--------------------FN_DYNVARS_001_03------------------------#' SET @@max_points_in_geometry = 10; SELECT @@max_points_in_geometry, @@session.max_points_in_geometry, @@max_points_in_geometry=@@session.max_points_in_geometry; @@max_points_in_geometry @@session.max_points_in_geometry @@max_points_in_geometry=@@session.max_points_in_geometry 10 10 1 SELECT @@max_points_in_geometry, @@global.max_points_in_geometry, @@max_points_in_geometry=@@global.max_points_in_geometry; @@max_points_in_geometry @@global.max_points_in_geometry @@max_points_in_geometry=@@global.max_points_in_geometry 10 1000 0 '#--------------------FN_DYNVARS_001_04-------------------------#' SET @@max_points_in_geometry = "1"; ERROR 42000: Incorrect argument type to variable 'max_points_in_geometry' SET @@max_points_in_geometry = " "; ERROR 42000: Incorrect argument type to variable 'max_points_in_geometry' SET @@max_points_in_geometry = 'abc'; ERROR 42000: Incorrect argument type to variable 'max_points_in_geometry' SET @@max_points_in_geometry = NULL; ERROR 42000: Incorrect argument type to variable 'max_points_in_geometry' SET @@max_points_in_geometry = 1; Warnings: Warning 1292 Truncated incorrect max_points_in_geometry value: '1' SELECT @@max_points_in_geometry; @@max_points_in_geometry 3 SET @@max_points_in_geometry = 67108865; Warnings: Warning 1292 Truncated incorrect max_points_in_geometry value: '67108865' SELECT @@max_points_in_geometry; @@max_points_in_geometry 1048576 '#----------------------FN_DYNVARS_001_06------------------------#' SELECT @@max_points_in_geometry = VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME='max_points_in_geometry'; @@max_points_in_geometry = VARIABLE_VALUE 1 '#---------------------FN_DYNVARS_001_08-------------------------#' SET @@max_points_in_geometry = OFF; ERROR 42000: Incorrect argument type to variable 'max_points_in_geometry' SET @@max_points_in_geometry = ON; ERROR 42000: Incorrect argument type to variable 'max_points_in_geometry' SET @@max_points_in_geometry = TRUE; Warnings: Warning 1292 Truncated incorrect max_points_in_geometry value: '1' SELECT @@max_points_in_geometry; @@max_points_in_geometry 3 SET @@max_points_in_geometry = FALSE; Warnings: Warning 1292 Truncated incorrect max_points_in_geometry value: '0' SELECT @@max_points_in_geometry; @@max_points_in_geometry 3 '#---------------------FN_DYNVARS_001_10----------------------#' SET @@max_points_in_geometry = 123456; SELECT @@max_points_in_geometry = @@local.max_points_in_geometry and @@max_points_in_geometry = @@session.max_points_in_geometry; @@max_points_in_geometry = @@local.max_points_in_geometry and @@max_points_in_geometry = @@session.max_points_in_geometry 1 SET @@max_points_in_geometry = 654321; SELECT @@max_points_in_geometry = @@local.max_points_in_geometry and @@max_points_in_geometry = @@session.max_points_in_geometry; @@max_points_in_geometry = @@local.max_points_in_geometry and @@max_points_in_geometry = @@session.max_points_in_geometry 1 '#---------------------FN_DYNVARS_001_11----------------------#' SET max_points_in_geometry = 100; SELECT @@max_points_in_geometry=100; @@max_points_in_geometry=100 1 SELECT local.max_points_in_geometry; ERROR 42S02: Unknown table 'local' in field list SELECT session.max_points_in_geometry; ERROR 42S02: Unknown table 'session' in field list SELECT max_points_in_geometry = @@session.max_points_in_geometry; ERROR 42S22: Unknown column 'max_points_in_geometry' in 'field list' SET @@max_points_in_geometry = @session_start_value; SET @@global.max_points_in_geometry = @global_start_value;