Add result.rowCount information (#75)

* Remove timescale sponsorship

* Add note on result.rowCount

* Change email address

Author: brianc

content/api/3-result.mdx

@@ -33,12 +33,20 @@ console.log(result.rows) // [ [ 1, 2 ] ]
 await client.end()
 ```
 
+### `result.command: string`
+
+The command type last executed: `INSERT` `UPDATE` `CREATE` `SELECT` etc.
+
 ### `result.rowCount: int`
 
 The number of rows processed by the last command. 
 
 _note: this does not reflect the number of rows __returned__ from a query.  e.g. an update statement could update many rows (so high `result.rowCount` value) but `result.rows.length` would be zero.  To check for an empty query reponse on a `SELECT` query use `result.rows.length === 0`_.
 
-### `result.command: string`
+[@sehrope](https://github.com/brianc/node-postgres/issues/2182#issuecomment-620553915) has a good explanation:
 
-The command type last executed: `INSERT` `UPDATE` `CREATE` `SELECT` etc.
+The `rowCount` is populated from the command tag supplied by the PostgreSQL server. It's generally of the form: `COMMAND [OID] [ROWS]`
+
+For DML commands (INSERT, UPDATE, etc), it reflects how many rows the server modified to process the command. For SELECT or COPY commands it reflects how many rows were retrieved or copied. More info on the specifics here: https://www.postgresql.org/docs/current/protocol-message-formats.html (search for CommandComplete for the message type)
+
+The note in the docs about the difference is because that value is controlled by the server. It's possible for a non-standard server (ex: PostgreSQL fork) or a server version in the future to provide different information in some situations so it'd be best not to rely on it to assume that the rows array length matches the `rowCount`. It's fine to use it for DML counts though.

content/welcome.mdx

@@ -16,11 +16,6 @@ $ npm install pg
 node-postgres continued development and support is made possible by the many [supporters](https://github.com/brianc/node-postgres/blob/master/SPONSORS.md) with a special thanks to our featured supporters:
 
 <div class="sponsors">
-  <div class="sponsor">
-    <a href="https://www.timescale.com">
-      <img src="timescale.svg" style={{ height: 80 }} alt="timescale.com" />
-    </a>
-  </div>
   <div class="sponsor">
     <a href="https://www.crate.io">
       <img src="crate-io.png" style={{ height: 80  }} alt="crate.io" />
@@ -29,7 +24,7 @@ node-postgres continued development and support is made possible by the many [su
 </div>
 
 
-If you or your company would like to sponsor node-postgres stop by [github sponsors](https://github.com/sponsors/brianc) and sign up!
+If you or your company would like to sponsor node-postgres stop by [github sponsors](https://github.com/sponsors/brianc) and sign up or feel free to [email me](mailto:brian@pecanware.com) if you want to add your logo to the documentation or discuss higher tiers of sponsorship!
 
 ## Getting started
 

src/components/Header.js

@@ -53,14 +53,6 @@ const Header = ({ location }) => (
                 <Link to="/" className={'navbar-brand navBarBrand'}>
                   {headerTitle}
                 </Link>
-                <div>
-                  <span className="sponsor">
-                    sponsored by{' '}
-                    <a className="sponsor-name" href="https://www.timescale.com">
-                      Timescale
-                    </a>
-                  </span>
-                </div>
               </div>
             </div>
             <div id="navbar" className={'navbar-collapse collapse navBarCollapse'}>
@@ -102,7 +94,9 @@ const Header = ({ location }) => (
                   }
                 })}
                 <li>
-                  <a href="https://github.com/sponsors/brianc" target="_blank" rel="noreferrer">{'❤️ Sponsor'}</a>
+                  <a href="https://github.com/sponsors/brianc" target="_blank" rel="noreferrer">
+                    {'❤️ Sponsor'}
+                  </a>
                 </li>
               </ul>
             </div>

src/components/footer.js

@@ -33,10 +33,6 @@ export default class Footer extends Component {
               @briancarlson
             </a>
           </span>
-          <span style={{ margin: 5 }}>|</span>
-          <span>
-            sponsored by <a href="https://www.timescale.com">Timescale</a>
-          </span>
         </div>
       </div>
     )