about hacking postgresql

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style="MARGIN:0cm 0cm 0pt"><span lang="EN-GB" style="mso-ansi-language: EN-GB"><font size="3"><font face="Times New
Roman">hello,</font></font></span><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-GB"
style="mso-ansi-language:EN-GB"><font face="Times New Roman" size="3">here more of details</font></span><p
class="MsoNormal"style="MARGIN: 0cm 0cm 0pt"><span lang="EN-GB" style="mso-ansi-language: EN-GB"><font size="3"><font
face="TimesNew Roman">I have a set of transaction.<span style="mso-spacerun: yes">  </span>Naturally, the transactions
executethemselves in competition.<span style="mso-spacerun: yes">  </span>But I would want to give to every transaction
apriority. Thus the transaction more priority must execute itself in first.<span style="mso-spacerun: yes"> 
</span></font></font></span><pclass="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-GB"
style="mso-ansi-language:EN-GB"><font size="3"><font face="Times New Roman"></font></font></span>  <p class="MsoNormal"
style="MARGIN:0cm 0cm 0pt"><span lang="EN-GB" style="mso-ansi-language: EN-GB"><font size="3"><font face="Times New
Roman">Ithought, as first step, to change the transaction syntax as follows </font></font></span><p class="MsoNormal"
style="MARGIN:0cm 0cm 0pt"><span lang="EN-GB" style="mso-ansi-language: EN-GB"><font size="3"><font face="Times New
Roman">Starttransaction (priority) </font></font></span><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span
lang="EN-GB"style="mso-ansi-language: EN-GB"><font size="3"><font face="Times New Roman"></font></font></span>  <p
class="MsoNormal"style="MARGIN: 0cm 0cm 0pt"><span lang="EN-GB" style="mso-ansi-language: EN-GB"><font size="3"><font
face="TimesNew Roman">But I do not know where to do exactly the change in gram.y </font></font></span><p
class="MsoNormal"style="MARGIN: 0cm 0cm 0pt"><span lang="EN-GB" style="mso-ansi-language: EN-GB"><font size="3"><font
face="TimesNew Roman">for I have to try to change in TransactionStmt, but I always receive the message syntax error at
nownear (</font></font></span><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-GB"
style="mso-ansi-language:EN-GB"><font size="3"><font face="Times New Roman"></font></font></span>  <p class="MsoNormal"
style="MARGIN:0cm 0cm 0pt"><span lang="EN-GB" style="mso-ansi-language: EN-GB"><font size="3"><font face="Times New
Roman">thanksyou a lot</font></font></span><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-GB"
style="mso-ansi-language:EN-GB"><font size="3"><font face="Times New Roman"></font></font></span> </td></tr></table><br
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