1 For search, when limit and or filtering is in place and search
2 is identical to previous search, the result set is re-used and the
3 target is not searched.
5 Limits may work perform local filtering as well, by using "local:"
10 Updated bytarget command to contain a suggestions element with misspelled
11 words and suggestions to these. pz2.js has been updated to deliver this
12 onwards as well. Only target that currently delivers this is the solr
17 New service definition element, xslt, that allows an embedded stylesheet
18 to be defined. This can be referred to from pz:xslt as an alternative to
21 New pz:sortmap:field setting for specifying hints on how to make
22 a target natively sort on a field. This is used for command=show in
23 conjunction with sort.
25 New pz:url setting for specifying the actual URL for a target. When
26 this is used the target ID is not used as URL anymore and the target ID
27 may be almost any string (not including []).
29 command=termlist without name parameter returns all termlists/facets.
30 Previously if name parameter was omitted, only "subject" was returned.
34 Make termlist sorting stable. Terms with same frequency are now sorted by
35 their display name. This makes a pretty display and improves our
36 regression test because qsort is not a stable sort.
38 New sort parameter value 'position'. The 'position' sorts merged records
39 by their original position from the remote target. This is primarily useful
40 for debugging and may be used for targets that already perform some kind
41 of relevance ranking. Note that sort by default is decreasing; so to get
42 records in their original order sort=position:1 must be used.
46 tmarc.xsl: yet another 773$g fix. Was broken in 1.6.1 as well.
48 Facility to change working directory for pazpar2 daemon. Option -wdir
49 sets working directory to dir. This facility is useful if core dumps
50 must be saved. In this case, the current working directory must be
51 writable by the running user, such as "nobody".
55 New configuration element <icu_chain> for <server>/<service> which
56 allows a named ICU rule (chain) to be defined. The names relevance,
57 sort, mergekey and facet are used for those operations. The definition
58 <icu_chain id="sort" locale="en"> .. </icu_chain>
60 <sort> <icu_chain locale="en> ... </icu_chain> </sort>
61 And so on.. for relevance, mergekey and facet as well. The latter
62 style is deprecated. The facet terms are normalized by the facet
63 rule by default. This may be changed on a metadata field basis by
64 defining the new attribute 'facetrule' for the metadata element.
66 <icu_chain id="myrule" locale="en"> ... </icu_chain>
67 <metadata name="author" termlist="yes" facetrule="myrule"/>
69 Preserve rorder for merged metadata. Fixes issue as reported by Sven
70 Porst: http://lists.indexdata.dk/pipermail/yazlist/2011-July/003230.html
72 tmarc.xsl: set journal-subpart to 773$ only.
76 Modify the behavior for the limit parameter (first defined in 1.5.7).
77 Mapping of limit searches are now defined by the new configuration item
78 pz:limitmap. Fix a dead-lock problem with the limit parameter.
80 Extend tmarc.xsl to extract 773$g data (OpenURL).
84 ICU default maps remove backquote (`).
86 Command 'search' takes limit parameter (optional). The limit parameter
87 allows a search to be limited one or more facets and the corresponding
88 values. This is for server side filtering.
90 Configure tweak: Use -lm for log(3) if needed
94 Fix a problem with skiparticle sortkey that could be completely
95 ignored (and reduced to "").
97 Fix dependency problem in pazpar2 RPM package (did not require
98 libyaz4 as it should).
102 Fix memory leak that occurred for command=termlist&name=xtargets .
104 Pazpar2 may save HTTP requests. Enabled by option -R.
108 Experimental support for DTIC DADS target. New dads-pz2.xsl.
110 Support for query_syntax (overrides the default for SRU | Z39.50)
112 Support for extraArgs (ZOOM "extraArgs" option) for targets
114 New commands: status-server and status-session
118 Fix for threaded runs: Client now have a copy of the database URL,
119 which can used after the database has been release from the client.
120 This makes the logging in the connection idle timeout of the client nicer (no NOURL) and should be thread-safe.
122 tmarc.xsl: Add journal-title-abbrev and full text.
124 cf.xsl: new fields: isbn, issn, journaltitle, volume, issue
126 Fix for cmd=record before search.
128 Session Logging clean up.
130 Fix wrong termlist factor when maxrecs is different from 100.
134 Fix missing pz:termlist_term_factor in settings.c messed up pz:preferred.
135 Term factor is default enabled but can be diseabled by
136 pz:termlist_term_factor=0
140 Add scaling of facet count. Currently always enabled, needs fixing.
141 Allow user-defined info for target suffix. This has no meaning in
142 Pazpar2 except to distinguish targets from each other. The suffix
143 data begins with #. For example z3950.indexdata.com/gils#Mydata
145 Added exact-match recordfilter; format name=value
149 SOLR support. Pazpar2 may operate as web service client for SOLR.
153 Fix for show command and block=1 (dead lock). Bug was introduced in
158 New RPM packages: pazpar2, pazpar2-js, pazpar2-doc. These have been
159 tested on CentOS 5.5 only.
163 Fix problem with result sets being removed from a client session
164 if the connection for it was resused by another session. Bug #3489.
166 New iphone UI for Pazpar2 (www/iphone).
170 Fixes for threaded operation.
172 New stylesheets for TurboMARC: tmarc.xsl and opac_turbomarc.xsl.
174 New example services in etc/services in source. In the Debian packages
175 these are located in /etc/pazpar2/services-available
177 Threaded mode operational on Windows. Requires Windows 7 or Windows
180 Default value of setting pz:max_connections is 0 which means that there
181 is no limit on number of connections.
185 Pazpar2 may operate in threaded mode. Enabled by element threads in
186 the configuration. See pazpar2_conf for details.
188 New setting setting: pz:max_connections. Setting pz:max_connections is
189 a limit of number of sockets to a host. When this limit is reached,
190 Pazpar2 will wait up to 5 seconds for a connection to becomes available.
191 The client will be marked Client_Error when it can not be searched
192 (other clients in a session may work). If pz:max_connections is not set
193 for a target, a value of 30 will be used. Note: the pz:max_connections
194 will only work in threaded mode.
196 pz2.js: JSON support for show.
198 Debian package: Enable default service, default.xml, before starting
199 Pazpar2 only if there is no service already in /etc/pazpar2/services-enabled.
203 Debian version depends on on libyaz4. Note that Pazpar2 will still
204 compile from source with YAZ 3.
206 Split services into separate files. The example configuration file
207 pazpar2.cfg.dist now includes a default service default.xml (part of
208 etc). And default.xml includes settings/edu.xml. The default.xml file,
209 not to be confused with settings/defaults.xml, is a template for jsdemo
210 and other services. The Debian package installs /etc/pazpar2/server.xml
211 which is now the main pazpar2 configuration (used to be called pazpar2.cfg).
212 server.xml includes services from /etc/pazpar2/services-enabled/*.xml .
213 The default.xml (from etc) is installed in /etc/pazpar2/services-available
214 and a symlink to it is created from services-enabled. The default.xml
215 service is unnamed and, thus, will be used by jsdemo and test1.
217 New setting pz:negotiation_charset. Patch from Andrei V. Toutoukine. The
218 new setting pz:negotiation_charset specifies character set for Z39.50 Init.
222 Support for additional fields in cf.xsl and pazpar2.conf.dist:
223 publisher, available, due, location (=locallocation), callno
224 (=callnumber), thumburl and score.
226 Describe pz:xslt and the auto setting.
228 Move mergekey definition away from the normalization stylesheets and
229 define a mergekey common for all target types in pazpar2.cfg.
231 Code update: Use the Odr_int type for hit counts. This is part of
232 YAZ 3.0.47 and later and so configure checks for that.
236 Metadata attribute 'skiparticle' also works for ICU based
237 normalization. (was only working for the non-ICU/ASCII before).
239 Command bytarget with argument settings=1 will show settings per
240 target.. This is to be able to verify correct settings and be able to
241 test that they are correct. The database settings array size is now
242 also stored.. Problems with database settings array is that if not
243 careful it will be too small (smaller than dictionary per-service
246 Make record list sorting stable by comparing mergekey for records if
247 relevance/title or other sorting criteria all match. This is merely to
248 ensure that our regressions tests works (reproducible output).
250 Relevance calculation changes: use a different denominator (length) for
251 per-field relevance scoring.. Instead of length of all ranked fields we
252 now use length of individual fields (as if they were individual "free"
253 text fields). This will ensure that documents with a long field with no
254 match (say description) will not "hurt" a title match.
256 Diagnostic member was not set on connection error. Fixed
260 Command search takes two optional parameters, startecs and maxrecs,
261 that specifies the start offset (0, 1, ...) and maximum number of records
262 to fetch for each target.
264 XSLTs + MARC maps are cached within a session so we don't re-parse
265 them over and over again. Even for a session with a single search
266 there's much to be gained because many targets use the same
269 The metadata attribute 'mergekey' now takes one of three values 'no',
270 'required', 'optional' . And the resulting mergekey from metadata
271 is now ordered in the same way as metadata in the service definition.
272 Older Pazpar2 version use the order in which metadata appeared in a
275 The search argument 'filter' now offers a new operator ~ which does a
276 substring match. The = operator works as before: string match for
277 anything but pz:id, or target match for pz:id.
279 New setting pz:recordfilter. The value of this setting takes the
280 form name[~value]. This setting makes Pazpar2 ignore all retrieved
281 records that do not have the metadata element name with value substring
284 Pazpar2 allows YAZ log level to be set (option -v).
288 For WS responses Pazpar2 creates XML header. Exception: raw record.
290 Setting XML files are now stored in etc/settings instead of etc. This
291 reflects the layout with the Debian package layout.
293 Settings may be posted for command=settings. The POSTed settings must
294 have root element 'settings' like regular setting files. In order to be
295 recognized, the POST request must use Content-Type=text/xml.
297 A service may be posted for command=init. This service will be used
298 during the session. The service may have its own target settings,
299 ICU config, timeout, etc. In order to be recognized, the POST request
300 must use Content-Type=text/xml.
302 Timeout values may be given per-service. That's element 'timeout'
303 which takes three attribute values (a subset may be given): 'session',
304 'z3950_operation', 'z3950_session'. Option -T is no longer supported
305 - used to specify session timeout.
307 Option -t tests the Pazpar2 configuration and returns exit code
308 (0=success, non-zero=failure). In previous version of Pazpar2, -t
309 specified local settings.
311 In version 1.2.0 the configuration file - after include processing -
312 was dumped to stdout. Now, the configuration is only dumped to the
313 yaz log file if option -d is given.
317 Configuration may now have multiple server areas. This means that a
318 Pazpar2 instance may listen on multiple ports. Virtual hosting is not
319 yet supported - on a server basis. Configuration may also have multiple
320 services .. That is repeating service elements inside a server. Each
321 has an attribute 'id' which serves as service ID. This ID in turn may
322 be used in a Pazpar2 session, by specifying parameter service=ID for
323 command init. There can be at most one unnamed service inside a server
324 which can be referred to by not specifying an service ID for command
325 init (backwards compatible). In order to partition multiple servers and
326 services a new include directive has been added. This takes an attribute
327 'src' which specifies one or more sub-files. For example to include
328 service files, one might use:
329 <server >.. <include src=/"etc/pazpar2/conf.d/*.xml"/> .. </server>.
330 It is the intention that that completely makes the settings directive
333 Fix problem where the record command would wait forever if there were
334 no targets to wait for (activeclients == 0).
338 One result set is created per session (last search) rather than for
339 each connection which happen to be shared (bug #3009).
341 marc21 stylesheets changed for efficiency.
345 Session timeout may be specified on the command-line as option -T.
347 Pazpar2 may now be operated in a no-merged mode for records.. All records
348 will be considered unique. This mode is enabled if no mergekey is
349 generated by the normalization stylesheet (pz:xslt).
351 Pazpar2 caches original records from each target and the 'record' command
352 with offset returns the original record if 'syntax' and 'esn' are NOT
353 specified. This speeds up retrieval of original records but also means
354 that Pazpar2 uses more memory. The cached records will be freed when the
355 session terminates or a new search is executed.
357 Pazpar2 no longer uses its own ICU wrapper. Instead the ICU wrapper
358 library part of YAZ is used.
360 Added SRU client support.
362 Automatically computes pz:nativesyntax if not provided. Works for XML and
365 --- 1.0.13 2008/11/24
367 Command bytarget returns name of target (if defined).
369 --- 1.0.12 2008/11/04
371 Fixed bug #2021.. location now holds all brief elements.
373 --- 1.0.11 2008/10/15
375 Fixed check for application/x-www-form-urlencoded parameters.
377 --- 1.0.10 2008/10/14
379 Fixes for IE in pz2.js.
381 Fixed bug #2021: non-merged, brief meta data NOT included for command=show.
385 Changed the JS library pz2.js to use POST for long URL (+ params).
387 Added installation instructions for Windows. Note: NT services is
388 NOT available until we make a new release of YAZ.
390 Preserve order of repeated metadata fields (they were reversed before).
392 More MARC21 information extracted for metadata.
396 Fixed bug #1162: HTML entities are not escaped properly.
398 Native Windows port of Pazpar2. Makefile for Visual Studio provided.
402 Marc21 stylesheet updated to reflect multiple full text fields
406 Fixed bug in pz2.js WRT DOMElement attributes on IE.
408 Fixed bug 2100: Database wildcards not working
412 Added support for retrieval of records in binary.
414 Fixed bug 1794: Pazpar2 does not return valid XML.
416 Deal with ICU not returning sortkey (resulted in SEGV before).
420 JavaScript library pzw2.js throws error if WS response (from Pazpar2 or
421 other) is malformed (non-wellformed XML or missing Pazpar2 OK status).
423 Improved diagnostics when Pazpar2 HTTP decoding fails.
425 Pazpar2 requests may be POSTed as using Content-Type
426 application/x-www-form-urlencoded.
428 Pazpar2 honors LF in HTTP headers.
430 Handle targets that handle negative hit counts (should not happen, but it
435 ICU is used for tokenization and normalization of the following: mergekey,
436 sorting, relevance terms.
438 Debian package now enables ICU tokenization and normalization by default.
442 Exposed user setting values (i.e. non-pz: names) to the record systems in two
443 ways: Either as parameters to the normalization stylesheets (which would allow the
444 programmer to postprocess or use the values in any way) or after the normalization
445 step, in which case values are made part of the normalized record (and available for
446 sorting, termlists, display, or other interface-related use.
448 Implemented sorting by year.
450 Option -d dumps records to the current log file instead of stderr.
452 Fixes for compilation on cygwin.
454 Z39.50 client code uses pz:elements. pz:elements was recognized in
455 earlier Pazpar2 versions but it was not used for anything.
457 icu_chain_test is using fgets instead of getline - fixes compilation
460 Loosen the CCL query parsing so that Pazpar2 only returns error if _all_
461 query conversions fail (rather than _any_). This means targets that do
462 not support some fields are ignored in a search.
466 Improved handling of socket timeout for Z39.50 connections.
468 Misc documentation updates and spell fixes.
470 Debian package pazpar2 creates log rotate entry.
472 Debian package pazpar2-apache2 reloads Apache2.
474 jsdemo included in distribution. It illustrates the use of the js/pz2.js
479 First public release.