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1 |
| -<!-- $Header: /cvsroot/pgsql/doc/src/sgml/queries.sgml,v 1.10 2001/10/09 18:46:00 petere Exp $ --> |
| 1 | +<!-- $Header: /cvsroot/pgsql/doc/src/sgml/queries.sgml,v 1.11 2001/11/08 23:40:40 petere Exp $ --> |
2 | 2 |
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3 | 3 | <chapter id="queries">
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4 | 4 | <title>Queries</title>
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@@ -118,11 +118,12 @@ FROM <replaceable>table_reference</replaceable> <optional>, <replaceable>table_r
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118 | 118 | <varlistentry>
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119 | 119 | <term>CROSS JOIN</term>
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120 | 120 |
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| 121 | + <indexterm> |
| 122 | + <primary>joins</primary> |
| 123 | + <secondary>cross</secondary> |
| 124 | + </indexterm> |
| 125 | + |
121 | 126 | <listitem>
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122 |
| - <indexterm> |
123 |
| - <primary>joins</primary> |
124 |
| - <secondary>cross</secondary> |
125 |
| - </indexterm> |
126 | 127 | <synopsis>
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127 | 128 | <replaceable>T1</replaceable> CROSS JOIN <replaceable>T2</replaceable>
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128 | 129 | </synopsis>
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@@ -151,13 +152,13 @@ FROM <replaceable>table_reference</replaceable> <optional>, <replaceable>table_r
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151 | 152 |
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152 | 153 | <varlistentry>
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153 | 154 | <term>Qualified joins</term>
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154 |
| - <listitem> |
155 | 155 |
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156 |
| - <indexterm> |
157 |
| - <primary>joins</primary> |
158 |
| - <secondary>outer</secondary> |
159 |
| - </indexterm> |
| 156 | + <indexterm> |
| 157 | + <primary>joins</primary> |
| 158 | + <secondary>outer</secondary> |
| 159 | + </indexterm> |
160 | 160 |
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| 161 | + <listitem> |
161 | 162 | <synopsis>
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162 | 163 | <replaceable>T1</replaceable> { <optional>INNER</optional> | { LEFT | RIGHT | FULL } <optional>OUTER</optional> } JOIN <replaceable>T2</replaceable> ON <replaceable>boolean_expression</replaceable>
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163 | 164 | <replaceable>T1</replaceable> { <optional>INNER</optional> | { LEFT | RIGHT | FULL } <optional>OUTER</optional> } JOIN <replaceable>T2</replaceable> USING ( <replaceable>join column list</replaceable> )
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@@ -229,12 +230,12 @@ FROM <replaceable>table_reference</replaceable> <optional>, <replaceable>table_r
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229 | 230 | <varlistentry>
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230 | 231 | <term>LEFT OUTER JOIN</term>
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231 | 232 |
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232 |
| - <listitem> |
233 |
| - <indexterm> |
234 |
| - <primary>joins</primary> |
235 |
| - <secondary>left</secondary> |
236 |
| - </indexterm> |
| 233 | + <indexterm> |
| 234 | + <primary>joins</primary> |
| 235 | + <secondary>left</secondary> |
| 236 | + </indexterm> |
237 | 237 |
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| 238 | + <listitem> |
238 | 239 | <para>
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239 | 240 | First, an INNER JOIN is performed. Then, for each row in T1
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240 | 241 | that does not satisfy the join condition with any row in
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