Hacking PostgreSQL

Final Code

PostgreSQL Subsystems

Hacking the PostgreSQL Way

From an Idea..

Parser Changes

Command Code Changes

Modifying the grammar

The grammar is a set of ”productions” in gram.y

”main()” is the ”stmt” production

Lists the productions for all of the top-level commands

”—” is used to indicate ”this OR that”

stmt :

AlterEventTrigStmt

| AlterCollationStmt

| AlterDatabaseStmt

...

| CopyStmt

...