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Spring Data JPA Cursor ๊ธฐ๋ฐ˜ ํŽ˜์ด์ง• ์„ฑ๋Šฅ ๊ฐœ์„ ๊ธฐJPA N+1 ๋ฌธ์ œํŠธ๋žœ์žญ์…˜ ๋ฒ”์œ„ ์ตœ์†Œํ™”๋ฅผ ํ†ตํ•œ ์„ฑ๋Šฅ ๋ฐ ์•ˆ์ •์„ฑ ํ–ฅ์ƒ๋ฉ€ํ‹ฐ ์Šค๋ ˆ๋“œ ํ…Œ์ŠคํŠธ์—์„œ ๋ฐœ์ƒํ•˜๋Š” @Transactional๊ฐ€ ์ฃผ๋Š” ๋ฌธ์ œnull์€ ์˜ค๋ฒ„ ๋กœ๋”ฉ๋œ ๋ฉ”์„œ๋“œ ์ค‘ ์–ด๋–ค ๋ฉ”์„œ๋“œ๋ฅผ ํ˜ธ์ถœํ• ๊นŒ?๊ฒฐ์ œ ์ •๋ณด ๊ฒ€์ฆ์„ ํ†ตํ•œ ์•ˆ์ „ํ•œ ๊ฒฐ์ œ ์—ฐ๋™ ์‹œ์Šคํ…œ ๊ตฌํ˜„ - ํ† ์Šค ํŽ˜์ด๋จผ์ธ ์„ฑ๋Šฅ ๊ธฐ๋ณธ@Builder ์‚ฌ์šฉ์˜ ์—ฌ๋Ÿฌ๊ฐ€์ง€ ๋ฐฉ๋ฒ•๊ณผ ์•ˆ์ „ํ•˜๊ฒŒ ์‚ฌ์šฉํ•˜๊ธฐBeanCreationException ์˜ˆ์™ธ๋กœ ์•Œ์•„๋ณด๋Š” ๋นˆ ์ƒ๋ช…์ฃผ๊ธฐ@Trasncational์„ ํ†ตํ•œ ์„ ์–ธ์  ํŠธ๋žœ์žญ์…˜ ๊ด€๋ฆฌ ๋ฐฉ์‹์—์„œ Self Invocation ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ•˜๋Š” ์ด์œ MySQL COUNT() ํ•จ์ˆ˜์˜ ๋™์ž‘ ์›๋ฆฌ์™€ ์„ฑ๋Šฅ

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