Skip to content

add HAVING clause on aggregate queries #11

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
jaw111 wants to merge 1 commit into
base: master
Choose a base branch
from
Open

add HAVING clause on aggregate queries #11

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
40 changes: 22 additions & 18 deletions app/services/requests/query-factory.srv.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,7 @@ function queryFactory() {
`?sub a ?class. ` +
`} ` +
`GROUP BY ?class ` +
`HAVING (count(?sub) > 0) ` +
`ORDER BY DESC(?instanceCount) ` +
`LIMIT ${limit} ` +
`OFFSET ${offset}`;
Expand All @@ -58,11 +59,11 @@ function queryFactory() {
labelLang = labelLang || defaultLang;

return prefixes() +
`SELECT (SAMPLE (?lbl) AS ?label) ` +
`WHERE { ` +
`<${uri}> rdfs:label ?lbl. ` +
`FILTER (langMatches(lang(?lbl), '${labelLang}')) ` +
`}`;
`SELECT (SAMPLE (?lbl) AS ?label) ` +
`WHERE { ` +
`<${uri}> rdfs:label ?lbl. ` +
`FILTER (langMatches(lang(?lbl), '${labelLang}')) ` +
`}`;
};

// alternative without SAMPLE
Expand Down Expand Up @@ -99,6 +100,7 @@ function queryFactory() {
`BIND (datatype(?val) AS ?valType) . ` +
`} ` +
`GROUP BY ?valType ` +
`HAVING (count(?val) > 0) ` +
`ORDER BY DESC(?valCount) ` +
`LIMIT ${limit}`;
};
Expand All @@ -107,16 +109,17 @@ function queryFactory() {

this.getOrderedClassClassRelationQuery = function(originClass, targetClass, limit, offset) {
return prefixes() +
`SELECT (count(?originInstance) as ?count) ?prop ` +
`WHERE { ` +
`?originInstance a <${originClass}> . ` +
`?targetInstance a <${targetClass}> . ` +
`?originInstance ?prop ?targetInstance . ` +
`} ` +
`GROUP BY ?prop ` +
`ORDER BY DESC(?count) ` +
`LIMIT ${limit} ` +
`OFFSET ${offset}`;
`SELECT (count(?originInstance) as ?count) ?prop ` +
`WHERE { ` +
`?originInstance a <${originClass}> . ` +
`?targetInstance a <${targetClass}> . ` +
`?originInstance ?prop ?targetInstance . ` +
`} ` +
`GROUP BY ?prop ` +
`HAVING (count(?originInstance) > 0) ` +
`ORDER BY DESC(?count) ` +
`LIMIT ${limit} ` +
`OFFSET ${offset}`;
};

this.getUnorderedClassClassRelationQuery = function(originClass, targetClass, limit, offset) {
Expand All @@ -140,6 +143,7 @@ function queryFactory() {
`FILTER (datatype(?val) = <${typeURI}>) ` +
`} ` +
`GROUP BY ?prop ` +
`HAVING (count(?instance) > 0) ` +
`ORDER BY DESC(?count) ` +
`LIMIT ${limit} ` +
`OFFSET ${offset}`;
Expand All @@ -149,9 +153,9 @@ function queryFactory() {
return prefixes() +
`SELECT DISTINCT ?prop ` +
`WHERE { ` +
`?instance a <${classURI}> . ` +
`?instance ?prop ?val . ` +
`FILTER (datatype(?val) = <${typeURI}>) ` +
`?instance a <${classURI}> . ` +
`?instance ?prop ?val . ` +
`FILTER (datatype(?val) = <${typeURI}>) ` +
`} ` +
`LIMIT ${limit} ` +
`OFFSET ${offset}`;
Expand Down