[□=□ | □ | □]
[lemma=□ | □ | □]
the others The other parts of the querytree like the ORDER BY clause arent of interest here . NULL attributes are represented as " \ N " . Similarly , if COPY is reading from standard input , it will expect a backslash ( " \ " ) and a period ( " . This is the location of the installation system tables , not the location of this specific database , which may be different . As part of the Chemical Stockpile Evacuation Preparedness Program , several schools in the vicinity of the Pine Bluff Arsenal received overpressure systems . The group already partners with K-12 schools to sponsor engineering-based events , such as a minority engineering camp at elementary schools to " plant the seed early , " according to civil engineer Michael Cano . For example , in Bosnia ESW has developed computer science curricula for high schools , fostering practical skills to build their struggling economy . There must be ' <' and '> ' ordering operators having the same left and right input datatypes as the mergejoinable operator itself . Current studies of engineering schools show that women have earned only 15 percent of the bachelor of science degrees and less than half that percentage of doctorates . This project is actually a series of eight schools and one children ’ s home reconstruction projects . Because the Postgres backend 's current working directory is not usually the same as the user 's working directory , the result of copying to a file " foo " ( without additional path information ) may yield unexpected results for the naive user . " Having a diverse engineering work force provides different perspectives from which to tackle very difficult technical problems , " says Danny Cartagena , an Intel product development engineer and a member of SHPE . Well-accepted , path-breaking research on learning ( see , for example , Bransford , et al ., " How People Learn " , and Claude Steele 's work on " stereotype threat " ) , shows that expectations heavily influence performance , particularly on tests . Embedded delimiter characters will be preceded by a backslash character ( " \ " ) . If you are requesting a range of indexed values from a table , or a single indexed value that has multiple rows that match , CLUSTER will help because once the index identifies the heap page for the first row that matches , all other rows that match are probably already on the same heap page , saving disk accesses and speeding up the query . What this means is that a join using " = " between interval fields would yield different results if implemented as a hash join than if implemented another way , because a large fraction of the pairs that should match will hash to different values and will never be compared by the hash join .