[CWB] CQPweb Restricted Query: Broken Distribution Function?

[Lehner Stéphanie (lehs)]

Dear CWB community

Since checking out CQPweb to revision number 1007 and 1011 respectively, I cannot perform the following query which works fine in revision 924:

I select Restricted Query, select a decade or year(s) with a CQP syntax query; the KWIC is correctly displayed. But when I continue and select Distribution, the following error message appears:

-->$<--
string(44) "$^--text||text_decade~1320.|text_decade~1950"

[this is above the title element displaying “Based on classification: Structure ‘’text_decade’’]

A MySQL query did not run successfully!
Original query: SELECT count(*), sum(words) FROM text_metadata_for_bbl_1850_2015_de WHERE (``='') /* from User: lehs_admin | Function: initialise_size() | 2017-Oct-04 06:45:16 */
Error # 1054: Unknown column '' in 'where clause'

When ‘downgrading’ to r924 , those queries work again. I have updated the database after I first upgraded to r1007 to version 3.2.27.

Could it be that r1007/r1011 brought an error in my CWB input file to light? (I find it strange, for example, that text_decade~1320 or text_year~1320 is displayed in the string every time even though I do not select it in my restricted query, sometimes in the middle of it, e.g. 
string(78) "$^--text|text_decade~1990.text_decade~2000.|text_decade~1320.|text_decade~1980")

Or could this be a bug?

Thank you for your hints and support!
Best
Stéphie
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