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25 lines
567 B
Markdown
25 lines
567 B
Markdown
# Use Argument Indexes
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In Postgres, each of the arguments you specify in a `select` statement has a
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1-based index tied to it. You can use these indexes in the `order by` and
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`group by` parts of the statement.
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Instead of writing
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```sql
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select id, updated_at from posts order by updated_at;
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```
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you can write
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```sql
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select id, updated_at from posts order by 2;
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```
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If you want to group by a table's `type` and then order by the counts from
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highest to lowest, you can do the following
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```sql
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select type, count(*) from transaction group by 1 order by 2 desc;
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```
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