# Part VIII. Appendixes

**Table of Contents**

[A. PostgreSQL Error Codes](errcodes-appendix.html)[B. Date/Time Support](datetime-appendix.html)[B.1. Date/Time Input Interpretation](datetime-input-rules.html)[B.2. Handling of Invalid or Ambiguous Timestamps](datetime-invalid-input.html)[B.3. Date/Time Key Words](datetime-keywords.html)[B.4. Date/Time Configuration Files](datetime-config-files.html)[B.5. POSIX Time Zone Specifications](datetime-posix-timezone-specs.html)[B.6. History of Units](datetime-units-history.html)[B.7. Julian Dates](datetime-julian-dates.html)[C. SQL Key Words](sql-keywords-appendix.html)[D. SQL Conformance](features.html)[D.1. Supported Features](features-sql-standard.html)[D.2. Unsupported Features](unsupported-features-sql-standard.html)[D.3. XML Limits and Conformance to SQL/XML](xml-limits-conformance.html)[E. Release Notes](release.html)[E.1. Release 14.2](release-14-2.html)[E.2. Release 14.1](release-14-1.html)[E.3. Release 14](release-14.html)[E.4. Prior Releases](release-prior.html)[F. Additional Supplied Modules](contrib.html)[F.1. adminpack](adminpack.html)[F.2. amcheck](amcheck.html)[F.3. auth\_delay](auth-delay.html)[F.4. auto\_explain](auto-explain.html)[F.5. bloom](bloom.html)[F.6. btree\_gin](btree-gin.html)[F.7. btree\_gist](btree-gist.html)[F.8. citext](citext.html)[F.9. cube](cube.html)[F.10. dblink](dblink.html)[F.11. dict\_int](dict-int.html)[F.12. dict\_xsyn](dict-xsyn.html)[F.13. earthdistance](earthdistance.html)[F.14. file\_fdw](file-fdw.html)[F.15. fuzzystrmatch](fuzzystrmatch.html)[F.16. hstore](hstore.html)[F.17. intagg](intagg.html)[F.18. intarray](intarray.html)[F.19. isn](isn.html)[F.20. lo](lo.html)[F.21. ltree](ltree.html)[F.22. old\_snapshot](oldsnapshot.html)[F.23. pageinspect](pageinspect.html)[F.24. passwordcheck](passwordcheck.html)[F.25. pg\_buffercache](pgbuffercache.html)[F.26. pgcrypto](pgcrypto.html)[F.27. pg\_freespacemap](pgfreespacemap.html)[F.28. pg\_prewarm](pgprewarm.html)[F.29. pgrowlocks](pgrowlocks.html)[F.30. pg\_stat\_statements](pgstatstatements.html)[F.31. pgstattuple](pgstattuple.html)[F.32. pg\_surgery](pgsurgery.html)[F.33. pg\_trgm](pgtrgm.html)[F.34. pg\_visibility](pgvisibility.html)[F.35. postgres\_fdw](postgres-fdw.html)[F.36. seg](seg.html)[F.37. sepgsql](sepgsql.html)[F.38. spi](contrib-spi.html)[F.39. sslinfo](sslinfo.html)[F.40. tablefunc](tablefunc.html)[F.41. tcn](tcn.html)[F.42. test\_decoding](test-decoding.html)[F.43. tsm\_system\_rows](tsm-system-rows.html)[F.44. tsm\_system\_time](tsm-system-time.html)[F.45. unaccent](unaccent.html)[F.46. uuid-ossp](uuid-ossp.html)[F.47. xml2](xml2.html)[G. Additional Supplied Programs](contrib-prog.html)[G.1. Client Applications](contrib-prog-client.html)[G.2. Server Applications](contrib-prog-server.html)[H. External Projects](external-projects.html)[H.1. Client Interfaces](external-interfaces.html)[H.2. Administration Tools](external-admin-tools.html)[H.3. Procedural Languages](external-pl.html)[H.4. Extensions](external-extensions.html)[I. The Source Code Repository](sourcerepo.html)[I.1. Getting the Source via Git](git.html)[J. Documentation](docguide.html)[J.1. DocBook](docguide-docbook.html)[J.2. Tool Sets](docguide-toolsets.html)[J.3. Building the Documentation](docguide-build.html)[J.4. Documentation Authoring](docguide-authoring.html)[J.5. Style Guide](docguide-style.html)[K. PostgreSQL Limits](limits.html)[L. Acronyms](acronyms.html)[M. Glossary](glossary.html)[N. Color Support](color.html)[N.1. When Color is Used](color-when.html)[N.2. Configuring the Colors](color-which.html)[O. Obsolete or Renamed Features](appendix-obsolete.html)[O.1. `recovery.conf` file merged into `postgresql.conf`](recovery-config.html)[O.2. Default Roles Renamed to Predefined Roles](default-roles.html)[O.3. `pg_xlogdump` renamed to `pg_waldump`](pgxlogdump.html)[O.4. `pg_resetxlog` renamed to `pg_resetwal`](app-pgresetxlog.html)[O.5. `pg_receivexlog` renamed to `pg_receivewal`](app-pgreceivexlog.html)

