Section 1.7.1, “MySQL Extensions to Standard SQL” 

## PI() 

Section 9.2.5, “Function Name Parsing and Resolution” Section 12.6.2, “Mathematical Functions” 

## Point() 

Section 12.17.5, “MySQL-Specific Functions That Create Geometry Values” Section 11.4.3, “Supported Spatial Data Formats” 

## Polygon() 

Section 12.17.5, “MySQL-Specific Functions That Create Geometry Values” 

## POSITION() 

Section 12.8, “String Functions and Operators” 

## POW() 

Section 8.2.1.20, “Function Call Optimization” Section 24.2.4, “HASH Partitioning” Section 12.6.2, “Mathematical Functions” 

## POWER() 

Section 24.2.4.1, “LINEAR HASH Partitioning” Section 12.6.2, “Mathematical Functions” 

## PS_CURRENT_THREAD_ID() 

Section 12.22, “Performance Schema Functions” Section 28.4.5.15, “The ps_thread_id() Function” 

## PS_THREAD_ID() 

Section 12.22, “Performance Schema Functions” Section 28.4.5.15, “The ps_thread_id() Function” 

## pthread_mutex() 

Section 1.8.1, “Contributors to MySQL” 

## Q 

[index top] 

## QUARTER() 

Section 12.7, “Date and Time Functions” Section 24.6.3, “Partitioning Limitations Relating to Functions” 

## QUOTE() 

Section 12.8, “String Functions and Operators” Section 9.1.1, “String Literals” 

## R 

[index top] 

