pg_basebackup is taking backup of extra files inside a tablespace directory

<div class="WordSection1"><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">pg_basebackupis taking backup of extra files other than
databaserelated files in side a TABLESPACE directory.</span><br /><br /><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Scenario:</span><br/><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">       1)  Create tablespace in existing directory
'/opt/tblspc'having some extra files and folders.</span><br /><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">               create tablespace tbs1 location
'/opt/tblspc';</span><br/><br /><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">        2) Now execute
thepg_basebackup command; </span><br /><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">               
Wecan see it will copy the extra files in '/opt/tblspc' directory</span><br /><br /><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Ithink backup should be done only files and folders present
inside'/opt/tblspc/PG_*' directory (TABLESPACE_VERSION_DIRECTORY). </span><br /><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Notall the files and folders in side '/opt/tblspc.'
directory.</span><br/><br /><br /><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Is it ok to fix in
thefollowing way?</span><br /><br /><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">In function
perform_base_backup,</span><br /><br /><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">while sending
thetablespaces one by one we can send the header for Linkpath/TABLESPACE_VERSION_DIRECTORY</span><br /><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">asseparate header and sendDir for
"Linkpath/TABLESPACE_VERSION_DIRECTORY" as path.</span><br /><br /><br /><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Regards,</span><br/><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Haribabu.</span><p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> </span></div>