Trac Ticket Queries

In addition to reports, Trac provides support for custom ticket queries, which can be used to display tickets that meet specified criteria.

To configure and execute a custom query, switch to the View Tickets module from the navigation bar, and select the Custom Query link.


When you first go to the query page, the default filter will display tickets relevant to you:

  • If logged in then all open tickets, it will display open tickets assigned to you.
  • If not logged in but you have specified a name or email address in the preferences, then it will display all open tickets where your email (or name if email not defined) is in the CC list.
  • If not logged in and no name/email is defined in the preferences, then all open issues are displayed.

Current filters can be removed by clicking the button to the left with the minus sign on the label. New filters are added from the pulldown lists at the bottom corners of the filters box; 'And' conditions on the left, 'Or' conditions on the right. Filters with either a text box or a pulldown menu of options can be added multiple times to perform an Or on the criteria.

You can use the fields just below the filters box to group the results based on a field, or display the full description for each ticket.

After you have edited your filters, click the Update button to refresh your results.

Clicking on one of the query results will take you to that ticket. You can navigate through the results by clicking the Next Ticket or Previous Ticket links just below the main menu bar, or click the Back to Query link to return to the query page.

You can safely edit any of the tickets and continue to navigate through the results using the Next/Previous/Back to Query links after saving your results. When you return to the query any tickets which were edited will be displayed with italicized text. If one of the tickets was edited such that it no longer matches the query criteria , the text will also be greyed. Lastly, if a new ticket matching the query criteria has been created, it will be shown in bold.

The query results can be refreshed and cleared of these status indicators by clicking the Update button again.

Saving Queries

Trac allows you to save the query as a named query accessible from the reports module. To save a query ensure that you have Updated the view and then click the Save query button displayed beneath the results. You can also save references to queries in Wiki content, as described below.

Note: one way to easily build queries like the ones below, you can build and test the queries in the Custom report module and when ready - click Save query. This will build the query string for you. All you need to do is remove the extra line breaks.

Note: you must have the REPORT_CREATE permission in order to save queries to the list of default reports. The Save query button will only appear if you are logged in as a user that has been granted this permission. If your account does not have permission to create reports, you can still use the methods below to save a query.

You may want to save some queries so that you can come back to them later. You can do this by making a link to the query from any Wiki page.

[query:status=new|assigned|reopened&version=1.0 Active tickets against 1.0]

Which is displayed as:

Active tickets against 1.0

This uses a very simple query language to specify the criteria, see Query Language.

Alternatively, you can copy the query string of a query and paste that into the Wiki link, including the leading ? character:

[query:?status=new&status=assigned&status=reopened&group=owner Assigned tickets by owner]

Which is displayed as:

Assigned tickets by owner

Customizing the table format

You can also customize the columns displayed in the table format (format=table) by using col=<field>. You can specify multiple fields and what order they are displayed in by placing pipes (|) between the columns:


This is displayed as:

Results (1 - 3 of 1349)

1 2 3 4 5 6 7 8 9 10 11
Ticket Resolution Summary Owner Reporter
#1479 fixed SCM/Spec mismatch in the processing order of merge candidate rounding and merge candidate bi-pred restriction rickxu
#1477 fixed merge candidates rounding in SCM inconsistent with spec libin
#1474 fixed HM Encoder allows Intra Block Copy MVs cross tile boundaries deryzhov
1 2 3 4 5 6 7 8 9 10 11

Full rows

In table format you can also have full rows by using rows=<field>:


This is displayed as:

Results (1 - 3 of 1349)

1 2 3 4 5 6 7 8 9 10 11
Ticket Resolution Summary Owner Reporter
#1479 fixed SCM/Spec mismatch in the processing order of merge candidate rounding and merge candidate bi-pred restriction rickxu

In SCM8.5, after getInterMergeCandidates(), the merge candidate bi-pred restriction, i.e. xRestrictBipredMergeCand(), is done before the merge candidate rounding, i.e. roundMergeCandidates(). But in the Spec, the merge candidate list generation follows the below steps, where the bi-pred restriction should be done after the merge candidate rounding. This caused the inconsistence between SCM and Spec.

Step 1: Derive the merge candidates (step 1-8 in spec, and SCM function is getInterMergeCandidates()) Step 2: Round the merge candidates if needed (step 9 in spec, and SCM function is roundMergeCandidates()) Step 3: Disallow 8x4 and 4x8 bi-pred merge candidates(step 10 in spec, and the SCM function is xRestrictBipredMergeCand()) Step 4: Disallow bi-pred merge candidates for some 8x8 CUs (the below part in spec, and the SCM function is xRestrictBipredMergeCand())

When all of the following conditions are true, refIdxL1 is set equal to −1 and predFlagL1 is set equal to 0. – predFlagL0 is equal to 1. – predFlagL1 is equal to 1. – nPbSw is equal to 8. – nPbSh is equal to 8. – TwoVersionsOfCurrDecPicFlag is equal to 1. – noIntegerMvFlag is equal to 1. – identicalMvs is equal to 0.

#1477 fixed merge candidates rounding in SCM inconsistent with spec libin

The bug was originally reported by Marie-Pierre (marie-pierre.gallasso@…) and some comments were from Rajan Joshi (rajanj@…)

In the specification text, in paragraph Derivation process for luma motion vectors for merge mode, from step 1 to step 8, the merging candidates list is constructed without considering the value of use_integer_mv_flag. In step 9, the motion vector of candidate pointed by merge_idx is rounded if use_integer_mv_flag is equal to 1 before assignment to the current block. In HM, the motion vector of each candidate is rounded when use_integer_mv_flag is equal to 1, even the motion vector of the temporal candidate. So it can make a difference in Derivation process for combined bi-predictive merging candidates, because in specification text, rounded and not rounded motion vectors may be combined.

In function getInterMergeCandidate() in TComDataCu.ccp (line 2631), merge candidates are derived one-by-one. When use_integer_mv flag is 1 or when the reference picture is the current picture, each candidate is converted to integer pel before storing it in pcMvFieldNeighbours. When processing the next merge candidate, there is a pruning step that checks whether the newly derived merge candidate is identical to an earlier one. This is accomplished using the function call hasEqualMotion().

if ( isAvailableB1 && (!isAvailableA1
!pcCULeft->hasEqualMotion( uiLeftPartIdx, pcCUAbove, uiAbovePartIdx ) ) )

The function hasEqualMotion() uses the original (non-rounded) motion vectors for comparison. So far, this behavior is exactly as in the spec, except that on the decoder side, there are a few mv rounding operations for unselected merge candidates, which has no normative impact. But later on, in case of bi-predictive merge, when selecting the combined merge candidates, there is a check for identical L0 and L1 motion vectors:

if (iRefPOCL0 == iRefPOCL1 && pcMvFieldNeighbours[(uiArrayAddr<<1)].getMv() == pcMvFieldNeighbours[(uiArrayAddr<<1)+1].getMv())

Here the check is performed on rounded motion vectors instead of original ones. Thus the software behaves inconsistently.

#1474 fixed HM Encoder allows Intra Block Copy MVs cross tile boundaries deryzhov

According to "Derivation process for motion vector components and reference indices" Intra Block Copy MVs can't cross tile boundaries (constrains (8-106)) but HM encoder in function TEncSearch::isBlockVectorValid() doesn't check this condition. Patch in attachment (to HM-16.15+SCM-8.4) can help to fix this problem.

1 2 3 4 5 6 7 8 9 10 11

Query Language

query: TracLinks and the [[TicketQuery]] macro both use a mini “query language” for specifying query filters. Filters are separated by ampersands (&). Each filter consists of the ticket field name, an operator and one or more values. More than one value are separated by a pipe (|), meaning that the filter matches any of the values. To include a literal & or | in a value, escape the character with a backslash (\).

The available operators are:

= the field content exactly matches one of the values
~= the field content contains one or more of the values
^= the field content starts with one of the values
$= the field content ends with one of the values

All of these operators can also be negated:

!= the field content matches none of the values
!~= the field content does not contain any of the values
!^= the field content does not start with any of the values
!$= the field content does not end with any of the values

The date fields created and modified can be constrained by using the = operator and specifying a value containing two dates separated by two dots (..). Either end of the date range can be left empty, meaning that the corresponding end of the range is open. The date parser understands a few natural date specifications like "3 weeks ago", "last month" and "now", as well as Bugzilla-style date specifications like "1d", "2w", "3m" or "4y" for 1 day, 2 weeks, 3 months and 4 years, respectively. Spaces in date specifications can be omitted to avoid having to quote the query string.

created=2007-01-01..2008-01-01 query tickets created in 2007
created=lastmonth..thismonth query tickets created during the previous month
modified=1weekago.. query tickets that have been modified in the last week
modified=..30daysago query tickets that have been inactive for the last 30 days

See also: TracTickets, TracReports, TracGuide, TicketQuery

Last modified 2 years ago Last modified on Jun 23, 2015, 3:16:04 PM