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@@ -20,7 +20,7 @@ Take the following example:
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SELECT * FROM table
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----
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-This query has four tokens: `SELECT`, `\*`, `FROM` and `table`. The first three, namely `SELECT`, `*` and `FROM` are __key words__ meaning words that have a fixed meaning in SQL. The token `table` is an _identifier_ meaning it identifies (by name) an entity inside SQL such as a table (in this case), a column, etc...
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+This query has four tokens: `SELECT`, `*`, `FROM` and `table`. The first three, namely `SELECT`, `*` and `FROM` are __key words__ meaning words that have a fixed meaning in SQL. The token `table` is an _identifier_ meaning it identifies (by name) an entity inside SQL such as a table (in this case), a column, etc...
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As one can see, both key words and identifiers have the _same_ lexical structure and thus one cannot know whether a token is one or the other without knowing the SQL language; the complete list of key words is available in the <<sql-syntax-reserved, reserved appendix>>.
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Do note that key words are case-insensitive meaning the previous example can be written as:
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@@ -45,7 +45,7 @@ Identifiers can be of two types: __quoted__ and __unquoted__:
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SELECT ip_address FROM "hosts-*"
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----
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-This query has two identifiers, `ip_address` and `hosts-\*` (an <<multi-index,index pattern>>). As `ip_address` does not clash with any key words it can be used verbatim, `hosts-*` on the other hand cannot as it clashes with `-` (minus operation) and `*` hence the double quotes.
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+This query has two identifiers, `ip_address` and `hosts-*` (an <<multi-index,index pattern>>). As `ip_address` does not clash with any key words it can be used verbatim, `hosts-*` on the other hand cannot as it clashes with `-` (minus operation) and `*` hence the double quotes.
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Another example:
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@@ -213,7 +213,7 @@ s|Description
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Two styles are supported:
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Single Line:: Comments start with a double dash `--` and continue until the end of the line.
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-Multi line:: Comments that start with `/\*` and end with `*/` (also known as C-style).
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+Multi line:: Comments that start with `/*` and end with `*/` (also known as C-style).
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[source, sql]
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Costin Leau
