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Doc fixes for MERGE statement 

In commit 3d895bc846 I introduced a bogus semicolon mid-statement by
careless cut-n-paste; move it.  This had already been reported by Justin
Pryzby.

Also, change the styling a bit by avoiding names in CamelCase.  This is
more consistent with the style we use elsewhere.

Backpatch to 15.

Author: Vitaly Burovoy <vitaly.burovoy@gmail.com>
Reviewed-by: Vik Fearing <vik@postgresfriends.org>
Discussion: https://postgr.es/m/9afe5766-5a61-7860-598c-136867fad065@gmail.com
Discussion: https://postgr.es/m/20220819133016.GV26426@telsasoft.com
This commit is contained in:
Alvaro Herrera 2022-09-09 13:51:45 +02:00
parent 68b0da6779
commit 5bb88967ed
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1 changed files with 14 additions and 14 deletions
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28
doc/src/sgml/ref/merge.sgml
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@ -554,18 +554,18 @@ MERGE <replaceable class="parameter">total_count</replaceable>
<title>Examples</title>
<para>
Perform maintenance on <literal>CustomerAccounts</literal> based
upon new <literal>Transactions</literal>.
Perform maintenance on <literal>customer_accounts</literal> based
upon new <literal>recent_transactions</literal>.
<programlisting>
MERGE INTO CustomerAccount CA
USING RecentTransactions T
ON T.CustomerId = CA.CustomerId
MERGE INTO customer_account ca
USING recent_transactions t
ON t.customer_id = ca.customer_id
WHEN MATCHED THEN
UPDATE SET Balance = Balance + TransactionValue
UPDATE SET balance = balance + transaction_value
WHEN NOT MATCHED THEN
INSERT (CustomerId, Balance)
VALUES (T.CustomerId, T.TransactionValue);
INSERT (customer_id, balance)
VALUES (t.customer_id, t.transaction_value);
</programlisting>
</para>
@ -575,14 +575,14 @@ WHEN NOT MATCHED THEN
during execution.
<programlisting>
MERGE INTO CustomerAccount CA
USING (Select CustomerId, TransactionValue From RecentTransactions) AS T
ON T.CustomerId = CA.CustomerId
MERGE INTO customer_account ca
USING (SELECT customer_id, transaction_value FROM recent_transactions) AS t
ON t.customer_id = ca.customer_id
WHEN MATCHED THEN
UPDATE SET Balance = Balance + TransactionValue;
UPDATE SET balance = balance + transaction_value
WHEN NOT MATCHED THEN
INSERT (CustomerId, Balance)
VALUES (T.CustomerId, T.TransactionValue)
INSERT (customer_id, balance)
VALUES (t.customer_id, t.transaction_value);
</programlisting>
</para>