{"id":104224,"date":"2022-06-02T15:37:06","date_gmt":"2022-06-02T13:37:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-ferretdb-0-3-realizaczii-mongodb-na-baze-subd-postgresql"},"modified":"2022-06-02T15:37:06","modified_gmt":"2022-06-02T13:37:06","slug":"vypusk-ferretdb-0-3-realizaczii-mongodb-na-baze-subd-postgresql","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/vypusk-ferretdb-0-3-realizaczii-mongodb-na-baze-subd-postgresql","title":{"rendered":"Lansarea FerretDB 0.3, o implementare MongoDB pe baza SGBD PostgreSQL","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A fost publicat\u0103 versiunea 0.3 a proiectului FerretDB, care permite \u00eenlocuirea bazei de date orientate pe documente MongoDB cu PostgreSQL f\u0103r\u0103 modific\u0103ri \u00een codul aplica\u021biilor. FerretDB este implementat ca un server proxy, tradus\u00e2nd cererile c\u0103tre MongoDB \u00een interog\u0103ri SQL c\u0103tre PostgreSQL, ceea ce permite utilizarea PostgreSQL ca efectiv depozit. Codul este scris \u00een Go \u0219i este distribuit sub licen\u021ba Apache 2.0. <\/p>\n

Necesitatea migr\u0103rii poate ap\u0103rea din cauza trecerii MongoDB la o licen\u021b\u0103 neoptimizat\u0103 SSPL, care se bazeaz\u0103 pe licen\u021ba AGPLv3, dar nu este deschis\u0103, deoarece con\u021bine o cerin\u021b\u0103 discriminatorie de livrare sub licen\u021ba SSPL nu doar a codului aplica\u021biei \u00een sine, ci \u0219i a codurilor surs\u0103 ale tuturor componentelor implicate \u00een furnizarea serviciului cloud. <\/p>\n

Principala audien\u021b\u0103 \u021bint\u0103 a FerretDB este utilizatorii care nu folosesc \u00een aplica\u021biile lor func\u021bionalit\u0103\u021bile avansate ale MongoDB, dar doresc s\u0103 utilizeze un stack software complet deschis. \u00cen prezent, FerretDB sus\u021bine doar o parte din func\u021bionalit\u0103\u021bile MongoDB, cele mai des utilizate \u00een aplica\u021biile tipice. \u00cen viitor, se planific\u0103 atingerea compatibilit\u0103\u021bii complete cu driverele pentru MongoDB \u0219i oferirea posibilit\u0103\u021bii de a utiliza FerretDB ca o \u00eenlocuire transparent\u0103 a MongoDB. <\/p>\n

MongoDB ocup\u0103 un loc \u00eentre sistemele rapide \u0219i scalabile care opereaz\u0103 cu date \u00een format cheie\/valoare \u0219i sistemele de gestionare a bazelor de date rela\u021bionale, care sunt func\u021bionale \u0219i convenabile pentru formularea interog\u0103rilor. MongoDB suport\u0103 stocarea documentelor \u00een format asem\u0103n\u0103tor JSON, are un limbaj destul de flexibil pentru formularea interog\u0103rilor, poate crea indici pentru diverse atribute stocate, asigur\u0103 eficient stocarea obiectelor binare mari, suport\u0103 jurnalizarea opera\u021biunilor de modificare \u0219i ad\u0103ugare a datelor \u00een BD, poate func\u021biona conform paradigmei Map\/Reduce, suport\u0103 replicarea \u0219i construirea configura\u021biilor redundante. <\/p>\n

\u00cen versiunea FerretDB 0.3 a fost implementat\u0103 comanda findAndModify care modific\u0103 un document, dar returneaz\u0103 versiunea sa ini\u021bial\u0103. Au fost implementate operatorii de actualizare a c\u00e2mpurilor \u2014 $inc \u0219i $set. A fost ad\u0103ugat\u0103 suport pentru sortarea tipurilor de date scalare.
\n
Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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