## ST_SRID() 

Section 12.17.7.1, “General Geometry Property Functions” Section 12.17.8, “Spatial Operator Functions” 

## ST_StartPoint() 

Section 12.17.7.3, “LineString and MultiLineString Property Functions” Section 12.17.8, “Spatial Operator Functions” 

## ST_SwapXY() 

Section 12.17.6, “Geometry Format Conversion Functions” 

## ST_SymDifference() 

Section 12.17.8, “Spatial Operator Functions” 

## ST_Touches() 

Section 12.17.9.1, “Spatial Relation Functions That Use Object Shapes” 

## ST_Transform() 

Section 12.17.7.1, “General Geometry Property Functions” Section 12.17.8, “Spatial Operator Functions” 

## ST_Union() 

Section 12.17.8, “Spatial Operator Functions” 

## ST_Validate() 

Section 12.17.13, “Spatial Convenience Functions” 

## ST_Within() 

Section 12.17.9.1, “Spatial Relation Functions That Use Object Shapes” 

## ST_X() 

Section 12.17.7.2, “Point Property Functions” Section 11.4.3, “Supported Spatial Data Formats” 

## ST_Y() 

Section 12.17.7.2, “Point Property Functions” 

## STATEMENT_DIGEST() 

Section 12.14, “Encryption and Compression Functions” Section 27.10, “Performance Schema Statement Digests and Sampling” 

## STATEMENT_DIGEST_TEXT() 

Section 12.14, “Encryption and Compression Functions” Section 6.4.7.4, “MySQL Enterprise Firewall Reference” Section 27.10, “Performance Schema Statement Digests and Sampling” 

## STD() 

Section 12.20.1, “Aggregate Function Descriptions” Section 1.7.1, “MySQL Extensions to Standard SQL” Section 1.2.2, “The Main Features of MySQL” 

