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1 | 1 | <!-- |
2 | | -$Header: /cvsroot/pgsql/doc/src/sgml/extend.sgml,v 1.17 2002/09/21 18:32:53 petere Exp $ |
| 2 | +$Header: /cvsroot/pgsql/doc/src/sgml/extend.sgml,v 1.18 2002/11/03 01:31:32 momjian Exp $ |
3 | 3 | --> |
4 | 4 |
|
5 | 5 | <chapter id="extend"> |
6 | 6 | <title>Extending <acronym>SQL</acronym>: An Overview</title> |
7 | 7 |
|
| 8 | + <indexterm zone="extend"> |
| 9 | + <primary>extending SQL</primary> |
| 10 | + </indexterm> |
| 11 | + |
8 | 12 | <para> |
9 | 13 | In the sections that follow, we will discuss how you |
10 | 14 | can extend the <productname>PostgreSQL</productname> |
@@ -75,6 +79,15 @@ $Header: /cvsroot/pgsql/doc/src/sgml/extend.sgml,v 1.17 2002/09/21 18:32:53 pete |
75 | 79 | <sect1 id="type-system"> |
76 | 80 | <title>The <productname>PostgreSQL</productname> Type System</title> |
77 | 81 |
|
| 82 | + <indexterm zone="type-system"> |
| 83 | + <primary>extending SQL</primary> |
| 84 | + <secondary>types</secondary> |
| 85 | + </indexterm> |
| 86 | + |
| 87 | + <indexterm zone="type-system"> |
| 88 | + <primary>data types</primary> |
| 89 | + </indexterm> |
| 90 | + |
78 | 91 | <para> |
79 | 92 | The <productname>PostgreSQL</productname> type system |
80 | 93 | can be broken down in several ways. |
@@ -109,6 +122,10 @@ $Header: /cvsroot/pgsql/doc/src/sgml/extend.sgml,v 1.17 2002/09/21 18:32:53 pete |
109 | 122 | <sect1 id="pg-system-catalogs"> |
110 | 123 | <title>About the <productname>PostgreSQL</productname> System Catalogs</title> |
111 | 124 |
|
| 125 | + <indexterm zone="pg-system-catalogs"> |
| 126 | + <primary>catalogs</primary> |
| 127 | + </indexterm> |
| 128 | + |
112 | 129 | <para> |
113 | 130 | Having introduced the basic extensibility concepts, we |
114 | 131 | can now take a look at how the catalogs are actually |
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