Hack the PostgreSQL parser or add a new Node type — covers scan.l flex tokenizer, gram.y bison grammar, parseanalyze in analyze.c, kwlist.h keywords, and adding/modifying Node types in parsenodes.h / primnodes.h / plannodes.h that flow through copy/equal/out/read funcs auto-generated by gennodesupport.pl. Spans the AST→Query→Plan three-tree pipeline, mutator/walker conventions (expressiontreewalker, querytreemutator), the node-type reference table, List/lappend/foreach idioms, and shift-reduce conflict resolution. Use whenever a PG patch edits src/backend/parser/, edits src/include/nodes/.h, adds a new SQL keyword to kwlist.h, extends a parse-tree node, writes a tree mutator/walker, or resolves a gram.y shift-reduce conflict. Skip for non-PG parsers (ANTLR, Babel, nom, tree-sitter, LALRPOP, Yacc/Bison on other projects, LLVM IR / Clang AST), JSON / XML / YAML parsing, and executor-node additions (use executor-and-planner instead).
Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI
Supported by the Atlas install prompt. Skill-specific requirements vary.
Skill stats
Skills1CategoryEngineeringStars0
About this skill
Hack the PostgreSQL parser or add a new Node type — covers scan.l flex tokenizer, gram.y bison grammar, parseanalyze in analyze.c, kwlist.h keywords, and adding/modifying Node types in parsenodes.h / primnodes.h / plannodes.h that flow through copy/equal/out/read funcs auto-generated by gennodesupport.pl. Spans the AST→Query→Plan three-tree pipeline, mutator/walker conventions (expressiontreewalker, querytreemutator), the node-type reference table, List/lappend/foreach idioms, and shift-reduce conflict resolution. Use whenever a PG patch edits src/backend/parser/, edits src/include/nodes/.h, adds a new SQL keyword to kwlist.h, extends a parse-tree node, writes a tree mutator/walker, or resolves a gram.y shift-reduce conflict. Skip for non-PG parsers (ANTLR, Babel, nom, tree-sitter, LALRPOP, Yacc/Bison on other projects, LLVM IR / Clang AST), JSON / XML / YAML parsing, and executor-node additions (use executor-and-planner instead).
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Hack the PostgreSQL parser or add a new Node type — covers scan.l flex tokenizer, gram.y bison grammar, parse_analyze in analyze.c, kwlist.h keywords, and adding/modifying Node types in parsenodes.h / primnodes.h / plannodes.h that flow through copy/equal/out/read funcs auto-generated by gen_node_support.pl. Spans the AST→Query→Plan three-tree pipeline, mutator/walker conventions (expression_tree_walker, query_tree_mutator), the node-type reference table, List/lappend/foreach idioms, and shift-reduce conflict resolution. Use whenever a PG patch edits src/backend/parser/**, edits src/include/nodes/*.h, adds a new SQL keyword to kwlist.h, extends a parse-tree node, writes a tree mutator/walker, or resolves a gram.y shift-reduce conflict. Skip for non-PG parsers (ANTLR, Babel, nom, tree-sitter, LALRPOP, Yacc/Bison on other projects, LLVM IR / Clang AST), JSON / XML / YAML parsing, and executor-node additions (use executor-and-planner instead).
About this listing
Category
Engineering
Reported license
PostgreSQL
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLI