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PostgreSQL 9.6.24 Documentation
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Chapter 42. PL/Tcl - Tcl Procedural Language

Table of Contents
42.1. Overview
42.2. PL/Tcl Functions and Arguments
42.3. Data Values in PL/Tcl
42.4. Global Data in PL/Tcl
42.5. Database Access from PL/Tcl
42.6. Trigger Procedures in PL/Tcl
42.7. Event Trigger Procedures in PL/Tcl
42.8. Error Handling in PL/Tcl
42.9. Modules and the unknown Command
42.10. Tcl Procedure Names

PL/Tcl is a loadable procedural language for the PostgreSQL database system that enables the Tcl language to be used to write functions and trigger procedures.

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